A good idea, we have already seen non-flying units adopt historic squadron numbers (The RAuxAF units spring to mind).
I recall a proposal to have the Wing/Squadron relationship nominally changed so that the Wing became the basic unit and the squadron a sub-unit (allowing Wing Commanders to command wings and Squadron Leaders to lead Squadrons) - this allowing an effective doubling of squadrons for numeric purposes. Don't think that ever took off, if you pardon the pun!