There will be a time when a movies release date wont change, other than the odd film here and there, but the world needs to control the COVID-19 pandemic first so cinemas can open safely for their customers.
The change for the next Ghostbusters film is not too bad only shifting by a couple of months unlike many recent changes which have moved anything from 12 - 19 months.
For Candyman at least when the removed it from its previous October opening they didn't set a new date so the new August 27th release is news.
There is a suspicion that there will be more changes to come, Wonder Woman 1984 currently set for 25th/26th December 2020 a likely candidate, so keep with 25thframe.co.uk for up to the minute news.