Odd submacular lesion with fibrosis

This right eye was initially treated with a haemorrhagic PED in early 2007, presenting with a vision of 6/24. Three Avastin injections were given at 6 weekly intervals, and things settled nicely with vision varying between 6/18 and 6/12 on subsequent visits. The last injection was September 2007.

Things remained stable till Feb 09, when she came back with a new complain of seeing a 'blob' in her central vision in her right eye.

Vision was still 6/18
Ant Seg - unremarkable, no cells in her vitreous.

This is her colour fundus photo:

Red Free pictures

She has a clear history of Flourescien allergy, so we couldn't do one.

IR photo:

Her early ICG is shown

Late ICG

Early ICG movie

Mid-phase ICG movie

Late ICG movie

Other eye had PDT some years ago for a fibrovascular PED and settled to a vision of 6/36, been stable for 5+ years.

Any idea about diagnosis? Management?