Erm, it's all down to personal opinion.

Personally I was on the verge of quitting the game pre patch but the new content has held my interest quite a bit, new vigor in terms of being able to level the other classes and have content to do on alts etc.

I resubbed for another 2 months and if the content keeps coming, can't see any reason to stop playing but as stated it's all down to your own personal feeling of the game, I would definitely suggest subbing for a month trying it out as the new content is definitely worth a look, also on the 21st of Jan there'll be even more content to grab your attention to some degree.

Noticed you're on Cerberus, if you want a large, social but progressive company we have over 100 members / 8 Coil Groups from all timezones so there's always an abundance of people online to mingle and have tag along with you in the content that's new to you etc, you'd be very welcome to join. Just give me a nudge if you decide to resub and I'll point you in the direction of someone to get you invited etc.