+ 1 for lurker.
I had it and was out for 2 years, but I made it back and was due to have run my first mara last December (only it was cancelled due to snow).
So, it is possible to recover.
Check out the threads, we all found that different things work, the only common aspect being patience. If you try to return before it's healed, you'll make it worse.
Stretching (calves and pf tendon) worked for me, I roll a rounders ball under both feet every day, 2 mins each foot and more than once a day if I can. I wear orthotics and have had them adjusted for PF, warmth also worked for me because when my feet get cold, the tendon really contracts. I had a night splint which I wore all the time when resting and gradually, things improved. I had physio treatment (firstly just sonic massage then exercises) but in between, I worked at the tendon constantly, massaging and lengthening it all the time.
Even though it's a few years since I had PF, I still stretch every day and after every run.
There is plenty you can do while waiting for the PF to repair, swimming and x-training, so work out an alternative programme and take it slowly when you start back. You might also want to consider pool running.
But the main thing is - you can recover.