- no assist characters will be joining your duo this time around. Instead, you choose two fighters and one Infinity Stone.
- offer the Stone as an assist-substitute, preventing certain characters becoming more like “tools” by being selected solely for what they offer as an assist ability
- new ability to instantly switch your fighters at any time, including mid-combo, similar to MvC3’s team aerial combos–but more quickly–and on the ground as well.
- regarding the concerns that X-Men were off-limits due to licensing issues; he reassured that X-Men are not off the table outright–“That heritage is not lost,” according to Roseman.