Grey's Anatomy pre-finale

Two things:

1) Isn't she a full-time cast member on White Collar? I think while she can cameo on another show, she can't star on both... and

2) WHAT DO YOU MEAN FINAL SEASON?!?! Where did you hear that the 10th season was going to be the final season? I've been watching this since I was like 14 and it's going to be extremely heartbreaking for me if it's really going to be the final season next season. Please tell me your sources!

Thanks!

Hey no idea about her role in that series but they definetely are keepin her, she said she's not going away easily and that she really likes Arizona. And final season? they said they were gonna sing for 2 more after 8, so I'm GUESSING 10 is the last one, just saying, they're running out of good material and let's admit it, fans keep dropping it