This is probably just a wild rumor, but an user of the Ilford forum, citing a French Ilford official, claims that it is "very likely" that all sheet film be dropped. Only 135 and 120 format film would still be produced. The link is the following:

http://www.ilford.com/html/us_english/ILFOPRO/forum/topic.asp?TOPIC_ID=6140

The exact quote (in French): "Ces films, FP4+ et HP5+, et la gamme Delta (100, 400 et 3200) seront toujours fabriqués, en 135 et 120. Par contre, les plans-films disparaîtront très probablement du catalogue." Nothing is said about Pan F or SFX.

I post this in the hope that someone will have a better (and negative) information on that issue.