Me? I’d just continue onto the Sustained power build plan, possibly low volume. I’ve ridden on Mallorca a few times. It is fantastic. There can be some long, not necessarily steep, but long climbs. It would be a natural continuation of the sustained power build and for the easier days, you could do a route on the flatland. Mallorca is great like that. Both possibilities are right there at your bidding.
When you get back, you could pick up the sustained power build and just keep going.