The Order seems to have done pretty well despite being a general dissapointment

Minor game spoilers inside

Openness in Levels

The story for me was pretty good , played by the beats a bit but enjoyable 

MULTIPLAYER!!! this game was built for multiplayer , modes versus other order knights , vamps , lycans and territory 

More battles against vampires , rebels and lycans

Maybe more characters ( 2-4 extra )to use in the game ( each with 5-6 hour mini campaigns )

a short 1st mission game bout galahad and his days as a trainee ( 3-6 hours )

gunplay was good , but i would want it better and more varied combat  , less QTEs , some platforming , smarter stealth more open ended levels

a brighter color palette

yeah thats what I want 

Have Naughty dog make it, ha.

No black bars

1. Better AI. This was probably the biggest contributor to the boring gameplay imho, the AI is terrible.
2. More impact when you fire. This is a big problem I have with Uncharted and Gears, too. You're shooting pea shooters apparently.
3. More enemy variety. There are four in the first one. You have head poking out barely above cover guy, aggressive power weapon guy, armored boss guy, and QTE werewolf.
4. Better writing. Story in the first was rather bland to me.
5. More actual game. I platinum'd it in under 7 hours and I would bet over half of that was cut scenes and walking sections.

I would also accept just doing #4, but releasing it on PSN for $10-20 instead of a freaking $60 retail title.

Do you seriously want a sequel to that QTE fest? .. damn

So basically... You want an almost completely different game, but same setting and graphical fidelity. I agree.

with 600k sales , seeems inevitable , if one comes will like too see improvements

Cutting down on the QTEs
Longer campaign
Coop campaign
Less linear

If they can do something unique with MP involving the other species then sure. If not then don't bother.
Co-op would be very welcome however as you're normally with a partner anyway.
The gameplay was great but a few different enemy types would be great. Vampires were explored and lycans can have more section.

I will never let myself get hyped by a RAD game. Never again.