In the original XCOM, I found the ability to alter names very helpful. As my soldiers progressed, I would add things like an * to their name when they hit 50 in Bravery… or + to their name when they hit 50 in Time Units. This let me look quickly at the roster when manning my squad and see who was best to fight against mind attacks, who had best mobility, etc. Much easier than opening each soldier’s skill chart to see who had what.
The same in XCOM2. I change callsigns around to reflect who is best for what and against certain threats.
Will we have the freedom to change names and/or callsigns?
Maybe something like a mouseover popup screen. Instead of having to close out of the roster select screen and then look at the soldier stat screen, when you hover your mouse pointer over an optional soldier a mini-screen popup appears showing all the stats and abilities for that soldier.