Some Canon rumors:
Canon has already unofficially discontinued the Canon 50D, and will be making this official very soon, end of June or sometime in early July. Canon announcements seem to be have been moved forward then initially planned. The Canon 60D (unconfirmed model name, but will most likely be this) was originally set for Photokina/September, but now looks like it may have been brought forward. Previous rumors indicated that Canon will have an announcement in mid-July.
Canon 5D Mark III will not be announced this year.