The all-rounder has joined ECB South Wales Premier League club St Fagan's and will play Sussex League Division One cricket for Chichester Priory Park when his university terms ends.
Gorvin joined Havant as a 15-year old and has scored over 2,700 runs in addition to taking some 115 wickets.
There is also speculation that former Havant captain Ben Walker is on the move again. He switched to Totton & Eling for the 2018 SPL season, but suffered a serious early season Achilles injury playing for Dorset and did not play competitive cricket last summer. He has been linked with a move to a Premier Division club.