Well, I am more thinking about that quote from Feige about Wanda and drawing energy from other dimensions. Especially considering she and her brother got their powers from the same source at the same time. And, as I said, Pietro also seemed to generate some kind of blue-silver energy traces when using his powers, not all that different looking from a silver Speedforce aura while in motion:
It has me questioning the mechanics of how his speed actually works, hence my doubts.
But anyway, need more details regarding the actual thread OP. How many sentinels, and whether it's the core Time Heist team, or the entire assembled army that are fighting.
Captain Marvel, Wanda, Thor, Dr. Strange, and perhaps even Iron Man at this point are all miles above the X-Men that fought the future sentinels in power levels sans Magneto, Storm, and the exotic powered individuals that could cause trouble like Xavier and Blink.
So let's break it down:
- Colossus: Yes, the future sentinels were giving it to him. However, we have two bricks that might as well be infinitely stronger than him in addition flight, energy projection, and hits that go through spaceships like a bullet through a paper target in Thor and Captain Marvel. ALL the future sentinel transports get wrecked by these two. Bonus: Thor has already fought an enemy in the Destroyer that has a face laser beam, so he immediately shoves Stormbreaker down their throats if worst comes to worst.
- Bishop: Soaks up energy, shoots it, and can explode. Anything he does, Iron Man does five times better, plus has all his Bleeding Edge capabilities and supersonic flight with space-faring and seafaring capabilities.
- Blink: Dr. Strange has the portal abilities plus a wide-array of magic powers. Stephen is a way better support character that can still go on the offensive his own self.
- Warpath: Thor, Hulk, Cap, Spider-Man, Drax, etc. They are all better versions of the Rogue-class DPS character that Warpath is.
- Storm: see Thor, Cap w/ Mjolnir, and Captain Marvel.
- Magneto: Wanda would've killed Thanos if not for Thanos' broken arrow order. Wanda hasn't shown the massive control capabilities Mags has, but she'll be a valuable and similar asset against the sentinels.
- Sunspot: Again, see Iron Man and/or Thor and/or Captain Marvel.
- Iceman: Same as above.
- Shadowcat: No Vision in this battle for intangibility, but I could see Ant-Man/Giant-Man causing absolute havoc for the sentinels.
Not trying to come across as a MCU fanboy, but the Sentinels never adapted and assimilated the big guns' power from the X-roster powers (Storm, Magneto, Quicksilver, Xavier, Jean Grey), so the Avengers are just too much and have too much variety. And they still have several threats that can just cause chaos and distractions like Starlord, Panther, Wasp, Falcon, and especially War Machine.
If all else fails, Thor and Captain Marvel duo the whole sentinel army.
MCU wins.