Final Update does it delete my progress or just reset my level

The WOA 2.0 Final Update, do I have to start back from Innsbruck or does it just reset my level for every airport, I’m in San Diego and I don’t wanna waste my progress on it.

You will keep the airports you already played on, but as far as I understood, the services will start new due to the new ramp agent system.

When the 2.0 update comes out, you can pay coins to open San Diego first.