They did turn up with Haze at The Peel last year, although as I recall there was NO new material. Even Haze had managed 1 new song in the intervening 10 years...
They've done three gigs since they officially threw in the towel in 1985 - the support slots for Haze at the Peel and the Boardwalk last year and their 21st Anniversary of breaking up in 1986 in Nottingham (where I was the support act - how's that for fame, being the perennial support act's support act?).
Rog did have a sporadic solo career before going off to road manage the likes of Rage In The Machine - he actually made a proper vinyl album called 'Flightless', which is rather good. Nowadays he runs a carnet service for bands going to Europe, as well as a couple of other businesses. Greg is a biggish cheese in the Forestry Commission, I believe.
Happy days - I met my wife through her being a Twice Bitten fan, and through me being their guitar tech (this was largely because I was the only person Rog knew who had a left-handed 12-string). So in a sense, my son owes his very existence to two ex-philosophy students with a fetish about multi-stringed instruments and some absolutely amazing tunes. I still rate Rog as one of the best songwriters of that generation, despite his occasional tendency to over-intellectualize.
Twice Bitten do have a web site -
http://soundslikethis.com/ - but it's not been updated since last year.
I did tech for Haze for a short while after TB, a very different experience. It was a very strange feeling seeing them play at Mattfest - it had been twenty years, literally - but I agree with the reviewer in Classic Rock Presents Prog, I thought they took everyone else out.