I'd urge people to remember that custom facial features will impact performance rather heavily on clients (having to render in each unique face etc) the reason M&B was able to do it was due to how basic the game was in terms of graphics and it had years and years of optimisation put into it to make everything run smoothly.
I'd suggest maybe a select number of preset heads that people can select from?
If people want NW then go play NW but Holdfast is trying to do different things and a lot of the stuff they've done different is amazing, the shooting is one example of this, an actual good shooting mechanic which isn't complete RNG makes shooting have more impact into gameplay, sure the melee isn't the best right now but that can be improved on over time.
Holdfast has so many more opportunities and possibilities due to it being in unity engine, sure the engine has had some hate on it over the years but when it's used correctly and time is put into games on it the outcome is amazing. I can't wait to see what AGS does next with this game as they continue to push updates, this engine upgrade should be very interesting to say the least.