So I was mulling over the details of TLJ, and though of somethings that might have made sense if only a few things were altered.
WARNING TEXT DUMP.
First of all timeshift this at least like a week forwards.
D'Qar Evac. So replace the stupidly slow Star Fortresses with a smaller strike bomber similar to either a Y or B Wing with proton torpedoes, they struggle to make enough passes to cripple the Fullminatrix, with swarms to TIE fighters hunting them down. Succeed in the nick of time but with heavy losses. The Resurgent open fire on the fleet, just as they make the jump to hypespace.
Instead of the whole out of fuel plotline (Lets face it, the Resistance must be grossly incompetent if they didn't line up a source of fuel, and unlike the crew of the Ghost their not constantly running away from the main galactic power), the Supremacy has interdictor tech, stopping the Resistance fleet from fleeing. But to stop the ships from simply splitting up, it has to maintain a very large field, thus preventing the FO from hyperspacing in more ships from different directons to intercept. This would maintain the whole chase scene while tying up some holes.
Due to how easilly the FO found them, the Resistance Admirals worry someone might have sold out the FO, and keep their plan B to themselves (The whole keep everyone in the dark plotline), however Kylo Ren's sqaud has launched to try and disable the Resistance capital ships, the majority of that space battle ensues as it did in the movie, except that Ackbar see's Kylo inbound and shouts "IT'S A TRAP!!" Kylo's wingman fires a missile, which while just missing bridge by hitting the superstructure above it, it damages the hull and fractures the window, the bridge crew watch the crack spread for half a second, then it shatters pulling several crew out, breaking the glass, but a blast shield similar to ones on the Invisible Hand's bridge slides down covering the breach, with many crew still inside. However the room is depressurised and we get a scene of them all suffocating (director gets his emotional drama) cut to Leia and we hear her choking, an feint aura surrounds her and we hear the breathing slow and stabilise slightly. Room re-pressurises, Leia collapses but lives, the crew hold a funeral for their dead comrades before jettisoning their bodies in escape pods as a final goodbye. Leia on life support. Most of the crew of the Vigil, Anodyne, and Ninka covertly move to the Raddus. Leaving only a skeleton crew.
Then Finn and Rose still do the whole covert op thing but go to Nar Shadda (Yes the Casino planet was kinda interesting, but we have so many things already existing that would work great as well) to find a specialist in hacking FO equipment so they can disable the interdiction field, gain the interest of the Hutts, who then plan to ransom them back to the Resistance, or collect a bounty from the FO. The Hutts go about nabbing the pair but they just slip away in as stolen ship.
Meanwhile Rey has had a week training with Luke (Where most of the nonsense was just day one, oh, and no green milk cow), and has managed some mastery of the basics. Otherwise plays out like movie. Gag reel of a hungry Chewie (unless people actually want a montage of Rey training with luke like luke did with Yoda).
Finn and Rose make their way onto the Supremacy with their hacker, however instead of the traitorous hacker, the Hutts found Finn and Rose's original ship, and using the data from the Nav computer, a few informants, and the profile of the hacker, figure out whats going on. They then inform the FO for a bounty to recuperate their losses, including the Resistance transports jamming field. The rest of this bit plays out mostly the same except the FO execute the hacker first, Phasma does a bit of villian esque boasting taking up time, the BB-8 walker scene then happens as normal.
Holdo scene, so first, when the supremacy starts to fire on the transports Holdo moves the ship to act as a shield, with the other ships coming about to engage and distract the FO Star Destroyers. Holdo watches the ships getting torn apart by the FO fleet. At this time General Hux has ordered power be transfered from the interdicton field to weapons and shields. Holdo's big moment, BOOM.
Unlike Hoth, the base at Crait doesn't have a shield generator, however the heat waves from the salt flats prevent effective targeting for a Base Delta Zero. Battle of Hoth.....erm.......Crait ensues, but with no stupid mini (horrendusly underpowered) superlaser. As for the Finn Rose scene, the Resistance fighters on Ski-Speeders were retreating, however Finn was going to circle back to buy time, but Rose was trying to talk him out of it, Laser cannon blast knocks the ski out from under Rose's speeder, flips crashing into Finn, Rose crawls over kissing scene, Finn picks her up and manages to run inside the base. (Since it's not a huge distance now.) The combined firepower of the AT-AT's and AT-M6's blasts a big enough hole.
At this point the rest of the movie can continue as before.
This is just my idea. My thoughts. If you don't agree, that's your personal opinion.