Can't wait.
I'm so glad I brought Goodbye Lullaby on a whim last year; my favourite album of 2011. I've just seen how surprising 'well' Goodbye did as well. It sold 1.2m worldwide, which happens to be only 200,000 copies less than Britney's last album did; suggesting they both have around the same amount of core and loyal fans (with a few casuals like me thrown in as well). And seeing as many people on forums keep insisting that Femme Fatale under performed not flopped (worldwide, both were obviously massive flops in the UK) perhaps Avril didn't do 'so' bad after all. Certainly better than Christina and Bionic.
Saying that I certainly hope that Album 5 and her return to L.A Reid returns her to much larger worldwide success; and X-Factor of course would be a great way to do that. Judging has done wonders for JLO's and Maroon 5's careers (bizarrely worldwide not just in the US) and certainly won't harm Christina's when she makes her comeback. It could well do the same for Avril and Britney.
Putting X-Factor aside she needs to promote. Big time. Like Christina, Avril returned after years out of the game and did a pathetic amount of promotion (like Britney) and so only her loyal fans brought the album (like Britney). I hope L.A has put aside a hefty budget for promotion!
I do think she may still struggle with airplay, and getting causal music buyers to buy her stuff if she continues to release stuff like What The HellI (which she was forced to record) though. I love WTH, it's so catchy but it's like a song she would release when she was 17 not 26. And that's a major criticism people have with Avril. Saying that Carly Rae Jepson is #1 WW and she's a 26 year old pretending to be 14!