You should book home resort at 11 months and then try to switch. That almost always is the best thing to do, and that is true regardless of any COVID related possibilities, because it assures having a room no matter what exists at 7 months out.
As to probabilities, unknown is impact of Covid. Usually, Kidani savanna view 2BRs are open at that time of year and decent chance for a standard view dedicated 2BR at Kidani. Jambo savanna view has some chance but likley less than 50%, and much lower for standard view. As to BCV, possible, but likely not a good chance, for a dedicated 2BR.
That has a caveat. A potential key is arrival date and thus when your 7-month window begins. Better arrival dates are late June rather than early July, What can happen is that rooms can be open 7 months out from, for example, June 29, but if you wait until 7 months from July 3 to book, those same rooms can be harder to get. (Note, however, if you actually planned for a July 6 or after arrival date, everything should open up again as that begins
DVC’s second lowest DVC demand time of the year at WDW, July 6 to 30.)