(1) a nonvested property interest or a power of appointment becomes invalid under Section 75-2-1203;
(2) a class gift is not but might become invalid under Section 75-2-1203 and the time has arrived when the share of any class member is to take effect in possession or enjoyment; or
(3) a nonvested property interest that is not validated by Section 75-2-1203 can vest but not within 1,000 years after its creation.