What If Walter had taken Hulk's body?

Bruce encouraged Walter to take the Hulk body as at that time Bruce was ready to pass on. Walter refused to do that to his old friend, but in this timeline he takes the offer (perhaps due to Beyonder prompting), and its Bruce who becomes lost at the Crossroads.

Walter returns in Hulk's body- he has all the Savage Hulk's power level, but none of the 'rage power up' - he also cannot transform back into a Human form. At first he is feared, but it becomes clear this is Walter, not Hulk, or even Bruce. Aurora rejects him as 'ugly' which causes Walter pain, but he survives.

Walter wears a costume and names himself Powerhouse, and having him and Roger in the Box armour gives Alpha Flight some serious fighting power. Plus having Walter back gives them some science support- though the kit has to be scaled up for his new form. With Walter around the problems with Roger's legs are discovered quickly after he gets them, and are fixed using a regenerator Walter is able to cobble together with some help from Hank McCoy. Lionel is confronted early, and is subdued easily.

Bruce would later return in the body of Smart Alec, free of the Hulk...