Wow, what scintillating witty banter Tourist - maybe if you are bored you could entertain us with your endless supply of heroic dits, top tips and a virtuoso solo blowing of the RN trumpet
There is no point wondering what SAR-H or Long SAR will bring - even those bidding for it won't know yet what the final setup will be.
There may be SAR helicopters, of as yet undetermined types, at 10, as yet undetermined locations flown by a number of probably quite professional crews from all walks (including sideways) of SAR life.
If you know more, you had better write and tell the DfT.