We will see Revolution games within the next four weeks. First of all, IGN´s Matt Casamassina has pretty much confirmed that there will be Revolution news before E3 by posting the following on an IGN Insider board, freely available through GoNintendo:
You won’t have to wait for E3 for stuff, that much I can guarantee. GDC should be decent. And you’ll learn about and even see games prior to E3.
He has since reiterated that statement on an IGN Board open to the public:
Well, I happen to know the timelines for some releases and a few are happening in April. Supposing the schedules don't change -- at this point, I'd be near-impossible to move them -- you'll start to see stuff before E3.
Thirdly, there is Nintendo Power claiming they will have "the biggest scoop of the year so far" on the next edition´s cover. Here´s a scan, courtesy of GoNintendo:
And lastly, I myself can reveal that we will see Revolution games within the next four weeks, possibly much sooner. I may have posted this under the rumour heading, but this is fact. If you ask me, about time.
Source: IGN Insider boards (through GoNintendo), IGN boards
Image source: GoNintendo