Here is the list of expected champion buffs for Marvel Contest of Champions.
** No Buffs in January / v.29.2
Mole Man – Tune-Up – February / v30.0
Terrax – Tune-Up – February / v30.0
Yellowjacket – Update – February / v30.0
Kingpin – Update – February / v30.0
March 2021 should have 2 Updates & 2 Tune-Ups. April should have 2 Reworks.
Release dates are approximate and based on the expected release date of the given update. To be clear, these are my best guesses based on the information currently available. Precise release dates are not generally revealed by Kabam in advance.
Champion Buff Key
Tune-Up – Numbers improvement, no ability changes
Update – Numbers improvement & minor ability changes
Overhaul – Full champion rework
Previous Champion Buffs
Punisher 2099 – Tune-Up – Oct 2020
Magneto Marvel Now – Overhaul – Sept 2020
Magneto – Overhaul – Sept 2020
Old Man Logan
Daredevil Hell’s Kitchen