March's gaming crate has a "Sidekicks" theme and contains something to do with Mega Man. Since it's a sidekick theme maybe it will be Roll, Rush, or Protoman related? Only time will tell for now but it will most likely be a smaller item as the main franchise featured seems to be Sonic, so maybe a Sonic shirt with a Mega Man figurine?
If you'd like to get one follow the link below :
Also alongside this crate is the Epic Drop which is very much Mega Man themed giving away an SNES classic, wearable helm, and the Mega Man headphones. (and a Sonic artbook)