1.Medical Suture Spray: Deployed from gauntlet's fingertips, used to seal wounds and prevent bleeding. ( much like the coagulation syringe or however you spell it )

2. Micro Lasers: Would be built in for M85, attachment for M42. Once used on M42, the attachment falls off as it is unusable.

3. Unibeam beam: Just the actual Unibeam beam that fires a long blue beam instead of the repulsor mode that we have in the mod already.

4. More Nano-tech weapons: I know more are probably coming but I'm including this anyway.

4.1: Fingertip Blowtorch: flame would come out of the gauntlets, not much info needed.

4.2: Energy Shield: Just an energy shield, not much to explain.

4.3: Foot Thumpers?: I don't remember the name of them but they were used in infinity war and endgame, they would significantly increase thruster power and kick power. ( can also be used to anchor the suit to the ground providing stability.)

5. I think it would be cool to attach singular parts of the suit to a person, like only the arms or only the mask. Would work well for a lot of marks.

6. Micro Shoulder Missiles: M85 has these, I don't know about M42 though. Would be lethal against flesh and would work more effectively against androids or metal in general.

7. M42 Suit Exiting: Not needed obviously, but it would be cool for the M42 suit to stand after the person leaves it. ( seen in multiple movies where many marks stand after the user leaves them )

That's all I really have, I know some of it might already be planned but I wrote it anyway.