I just got a renewal invoice for one of my communities. I am forgetting about the recent change announcement in billing. Can please clarify how long this subscription/renewal is good for? Is it just 6 months again or is it 12 months? I noticed the amount is larger than previously and I do remember something about a price increase, but I dont remember if the renewal period is changing or not. 

If you click on “Manage this purchase” on this page you see the renewal price, term and date. 

The renewal term was originally to change to 12 months, however based on feedback, this was reverted to 6 months. So unless you happened to pay a 12 month invoice in that small period of time it was set, it will be 6 month from the time you last renewed. Aa mentioned by opentype above, you can check this on your client area