If their was one thing I would like to see this year, soon than later is a new class, I think the top picks for most people would be some sort of a mechanicus character or a Rattling, I my self would lean more towards a Rattling, for his ability’s they could be something like Sniper (maybe a multiplier on damage on x amount of shots), the Fixer (drops ammo or stim pickups) and cook (drops down a pot that give a area buff or a timed buff if you interact with it), I would also like to see a adeptus arbite as it is a hive city or bring another Inquisitor or a Rogue Trader in the story and bug us some alien classes, A Eldar, Tau, Kroot, would love a Kroot, have them start off with low level human weapons, and a higher levels, let the get guns more towards their race from a vender who works for the person who brought them there.
New mission types, give use new types, maybe something like a guard mission, where you have to move a objective to point A to B, but don’t make the objective destructible, that would just make a game mode most would avoid, how about a endless mission, say a refueling station, you have to fend of waves of enemies as ships fly in to load up and fly off, the longer you stay the better the rewards.
New weapons, lets see, most are waiting for melta, but what about flamer pistol, needle pistol, longlas, hotshot las, power axe, power fist, give us a two handed maul for the Ogryn, or even rebar with a rock on the end.
Now we know at some point we will be getting a rework to curio’s, but how about we also get a new Item a Relic, it would be something small like a ring or a bone, something like what we get with cosmetics to hang off our weapons, as for what they do, maybe something like give use a node on the skill tree for free, or add a bonus to a node, say the node gives % damage, maybe it increases it, higher level ones could give you say the ability to have a nod that is normally cut off by your build, like with Blazing Piety where you choose Stalwart or Fury Rising, it would unlock the other option as well, or maybe something thing as simple of giving you a extra grenade or stim pickup slot.
The last thing I think needs to be addressed is Requisitorium, with how Masteries work now getting weapons from there seems pointless, now if you want to get a weapon you just buy it from the store and build it up, as you have a better chance of getting the stat spread you want, so things that could be added there are maybe a one time mission bonus for drops or have them sell x amount of Plasteel and Diamantine a day or even credits, just give us something worth spends ducets on.