Pretty certain Aer Arran won't.
They flew LDY - MAN and BHX earlier this year. MAN did ok but BHX didn't. It was the same a/c operating a W routing. They might have carried on but found out that the airport mgmt were talking to RYR about LPL - they fell out with the airport mgmt and actually pulled out of LDY completely as a result.
Logan took over the MAN route mainly to give the a/c something to do in the middle of the day since it had won the Irish govt subsidised route from LDY to DUB.
I guess they looked over their shoulder at the RYR behemoth and thought oh what the hell.
RYR will hoover up all the NW England market to LDY (such as it is) they don't do all that well on Stansted.