The wording of the statement sounds like there will be a future "permanent" stadium in plan, somewhere. But as well all know, if that is not well into a planning process already it wont be available for 2-3 years at best. So, in order to be able to play either next season, or the one after, there must also be some kind of plan for a temporary home. With Hollands ownership of the company which holds the right to a lease at Sixways, it would be very likely that either:
1. Wasps play at Sixways until a permanent home is built
2. Sixways is that permanent home.
Option 1 would seem reasonably sensible & matches some of the noises we've heard, although I can see some local hostility. Warriors would need to be resurrected somehow (potentially as part of prem 2 etc) and maybe the ground shared?
And of course all this ignores the question of what competition Wasps v2 would be playing in, which as we know is, to a major extent out of Wasps hands.