Will there be a rigid boargame-y tier progression of tech/weaponry (e.g. kinetic->laser->plasma) which makes all older weapons obsolete, like in the Firaxis XCOM, or will new weapons have their niches and tradeoffs that will make it reasonable to actually use older technology (e.g. lower dmg, but unlimited ammo for laser weapons etc.)?
Is there going to be just one weapon per type, per tech tier like XCOM1/2 or will we be able to add some variety to our arsenal, even if just cosmetic like Enemy Within's EXALT ballistics?
Will New Jerico have a technology skill in game of dipping bullets in molten Alkali metals to cause extra damage to the aliens?
When you upgrade weapons tech will every soldier get a new advance weapon at the cost of a large one time purchase, or will we need to produce these one by one?
How complex will Weapon modification be? Will you be able to upgrade all tech slots or be limited to 1-2 upgrade per weapon as in XCOM 2?