Deferral 2021, test center capacity

With the new deferral options for Feb 2021 candidates being made available on Feb 2nd 2021, will I be able to check the availability of test center capacity in my city before deferring it to a later exam window, March?

(Since the March window has already opened for registration for the eligible L1 candidates who couldn’t schedule their Feb exam, can I be assured that the test centers in my city can accommodate deferrals too, before deferring my exam?)