Princess Diaries to follow the Traveling Pants into adulthood.

From EW:

After a five-year break since the last installment (2009) — and to commemorate the upcoming 15th anniversary of the first Princess Diaries book — author Meg Cabot announced that more Mia Thermopolis is coming next summer. The best part? The now-adult fans of the series won’t have to read a book aimed at teens. [<--PHEW. WE ALL TOTES DODGED A BULLET THERE.] For the first time, a Princess Diaries book will be just a regular old novel for adults. Thank you, Meg Cabot.

AND there's going to be a spin-off series about Mia's long-lost half-sister.

While I lost interest in the Princess Diaries books somewhere in the middle (I think it was the shift from hilarious to uber-angst), I suspect I'll be all over reading the spin-offs.

ETA: Also, what the hell, EW? OH, THE HORROR IF ADULT FANS HAD TO LOWER THEMSELVES TO READ A BOOK AIMED AT TEENS. ZOMG, THAT WOULD TOTALLY BE THE WORST THING EVER!