The talk about IP being loaned/gifted was compete baloney, both Nokia & Jolla formally refuted that several times, yet it's constantly rehashed.
Could it happen in the future? Maybe, who knows, I very much doubt it though. IP however has been licensed, on reasonable terms...
Also, Jolla doesn't have any of Nokia's IP as a result of building on top of MeeGo, that's a mis-comprehension of what MeeGo/MeeGoCE was.
Aside from that, nowadays MeR/Nemo/Sailfish is so different from those early days of MeeGo that it may as well NOT be based on MeeGo.