I was reading the fluff in Operation Hades and I see on page 7 that they mention SSU having heavy combat armor. It is mentioned in the SSU Veterans section. Is this a hint that there are armor 3 troops coming for the SSU?

With Icarus coming out having rules for minefields and the Hades fluff mentioning that the heavy combat armor gives "renewed mobility" to soldiers wounded by advanced minefields and other traps.

Does this mean that there will be tesla weaponed armor 3 troops in their future? I hope so.

My pie in the sky dream? Armor 2 (maybe 3?) guys embedded in walkers, think Dreadnaughts from WH40k

You could use some AT-43 Red Blok walkers, there are Dust cards for them over on this site.

http://twc-dust-tactics.blogspot.co.uk/