Now, I want to mention that I am fairly new to these games, having only started to really get into 40k again recently, and only having known just a bit of lore a couple years ago thanks to some friends. Even though I am new, I would like to consider myself a pretty quick study, which is where this question came from. I noticed that characters from Rogue Trader start out at a higher rank than a character from Dark Heresy. Essentially my question is this; is this going to be the same with Deathwatch?
I could see starting a character off as a scout Marine if the game wasn't settled around the Deathwatch, which are veteran units seconded from other Space Marine Chapters. First off I'd like to make it perfectly clear, from what I've read I find it quite possible that you can don Scout armor for a specific mission. However, what I'm speaking about now is skills and talents, not which specialty a Space Marine chooses. To continue with my thought process, I would think just a simple battle-brother would be higher rank than a starting Dark Heresy character; maybe going so far as to say a new Aspirant would be so as well, due to their training as children from what I've read. With that thought, I'm sure an Aspirant probably wouldn't be the rank a Rogue Trader starts at. Though a newly Power Armored Marine might be just under or at the rank of a Rogue Trader, it just depends on how powerful FFG decides to make them out to be.
So, depending on what FFG's gonna do, a Deathwatch Marine might be around Rogue Trader level, or maybe more powerful. However, as I say this I would like to mention I don't particularly like the Rogue Trader method of leveling. I can understand that it's easier to create a character that way, but I prefer being able to select every single talent or skill that my character would have at that level. With that, I ended up making a character from DH to be inside of an RT game. The customization of a DH character is in my eyes much better than choosing "packages" or as they're called in RT "Origin paths".
In conclusion, I am expressing my dislike of the Rogue Trader character creation, and hope that the level of customization that Ross Watson has mentioned will include that of specialized talents and skills. Though the sneak peak at the Devistator Marine makes me wonder, there could be a lot left out, so I wanted to pose the question to get a solid answer.