The major Japanese gaming news sites are still holding off on any major reporting of Ryuusei no Rockman 3 (Mega Man Star Force). However, a small report today states that the series is headed towards a climax (though this is probably apparent with how it's been promoted so far). However, this is no indication that the series is coming to a close.
Compared to the first two titles, 3 seems to have a more sleek, toned down logo. Also following the above link shows a fairly dark picture of Mega Man that seems to be remiss of Omega-Xis head, and instead a curious glowing device (the Hunter VG, perhaps).