18. The 'wait and see' rule.

18.     The 'wait and see' rule.

Where the Perpetuities and Accumulations Act 2009 applies1, and an estate or interest would be void on the ground that it might not become vested until too remote a time, until such time (if any) as it becomes established that the vesting must occur (if at all) after the end of the perpetuity period the estate or interest must be treated as if were not subject to the rule against perpetuities2. If it becomes so established, that does not affect the validity of anything previously done (whether by way of advancement,