Well... it looks like I spoke too soon. Apparently there is an ex-Prem keeper among the newcomers. So the coach had a little talk with me after training about the second team and what a good favour I could do for them in goal...
I am not particularly looking forward to being a Div 4 keeper again, but I am a team player. And the good news is we're getting a keeping coach, so I might actually get better even though I'm playing in the 50-year-old grannies and cigarettes-at-half-time league. :-/