Discovered this on my promotions page today.
If so, it looks like the next promotion will be based on night instead of stays. Reaching the maximum number of points (no idea how many) will require 50 nights. No details on when this promotion starts or ends, so we'll have to wait for more info. Also unknown at this time is whether everyone will see the same offer or if, as in many past promos, there are different offers based on past stay history.
On the plus side, if this is showing up now, it could mean the summer MegaBonus kicks in fairly soon after the current one ends. Let's hope so.
Guess we need to stay tuned.