I heard that Air Southwest are considering Manchester, Jersey, Paris CDG, Leeds and Newcastle from Bournemouth. But as for a date for launch, it remains to be seen. Largely depends on aircraft availability and stricking an appropriate deal at BOH.
As for Flybe I heard that they are considering some operations from BOH but not in place of SOU - just supplimenting some busy markets like BHD, EDI, JER and GCI.
Air Berlin will not add UK routes from BOH but may add Palma, Berlin, Munich and Hamburg. Paderborn is doing better at Bournemouth than it was at Southampton so they are confident more routes by AB will follow.
I could see BOH handling easily 3m by 2010 (maybe 4.5m by 2015)