Better late than never.

Fingers crossed. — hoping for luck.

That's a game changer.

Don't jump to conclusions.

It's not rocket science.

I'll get back to you. — reply later.

Take it with a grain of salt. — don't fully trust it.

The ball is in your court. — your move.

It's up in the air. — undecided.

Break a leg! — good luck.