MCU: Hulk to have 'major role' in Thor 3 · 9:17pm Oct 17th, 2015
For those of you who were somehow hankering for more of Mark Ruffalo's version of the Hulk (I for one, prefer Edward Norton's take), you can now rest easy.
According to Deadline (a very reliable source), Mark Ruffalo will, in fact, play Banner/Hulk in Thor 3, which will apparently focus on Thor meeting the Valkyries, and of course, battling Loki.