Upgrading Site from 5.7 -> 9 Legacy Forms Question

We are currently proposing on updating a site to 9.x which has about 50 legacy forms on it. Are there any security considerations around keeping existing forms using the legacy system instead of re-creating each of them? Are there any known plans for completely removing the legacy forms section in a future version?

Thanks for any insight / input about how others have handled this scenario!

There shouldn’t be any issues, no. But migrating them as soon as you’re able is probably a good idea.