Seriously, this would be so unfair on her. There won't be music shows because of the Olympics, so she won't get the chance to perform there, which would suck.
Then there is the fact we already have the 4+1 project, which many Blinks are saving up for. The huge OT3 accounts will take this as an opportunity to make excuses to not raise funds for Lisa, so she will lose out in that respect too. People will never choose Lisa first sadly.
Jennie and Rosé got great promo periods, and Lisa deserves the same. Releasing Lisa's solo in July would really throw her under the bus for a multitude of reasons. I would rather wait until September or October so she can have the spotlight to herself.