Given it seems to be maintaining the previously planned structure, cash rooms (in obvious addition to DVC) seem incredibly likely to me. It’s way too big to be a DVC only offering. It’s also way too big to be a hotel only offering.
In addition to this, they really hacked away at Wilderness Lodge’s cash room count. Magic Kingdom is also getting a ton of investment. For that reason it wouldn’t be surprising that booking is too tight for this area of WDW.
Thinking beyond this a little bit, I still really feel like Riviera will get a second wave with some cash rooms. Unlike Saratoga or Old Key West, it’s proven to be more of a desirable location for cash rates. With an accompanying further reduction in Caribbean Beach, that I don’t think does as well.