An official Marvel vs. Capcom 3 announcement will arrive tomorrow after being shown for the first time at Captivate 2010 in Hawaii last week, according to PlanetXbox360.

A few details about the game have leaked and, if they’re correct, include a few confirmed characters, gameplay perspective and more (thanks to EventsHub for the summary).

• Confirmed characters so far are Wolverine, Spider-Man, The Hulk, Magneto, Storm and a few others will return.
• The Marvel vs. Capcom 3 development team said they will be blowing fans out of the water with the sheer number of characters this game includes on the disc.
• This will be another 2D fighter — gameplay-wise — but will be something of a cross between the original Marvel vs. Capcom 2 and Street Fighter IV.
• The rumored release date is late 2010 or early 2011 on the PlayStation 3 and Xbox 360, no plans right now for other systems.
• The game will run in 1080p resolution.
• It will be a disc-based release.
• Apparently the game will have unlockables again.
• Marvel vs. Capcom 3 will be playable at this year’s E3 which is held on June 15 – 17th.

Apparently, the announcement embargo for those that attended Captivate lifts tomorrow. That’s not long. Hopefully we’ll get some screenshots and video along with the announcement.