Mortal Kombat Kollection Online was a collection including remastered versions o the first three Mortal Kombat games developed by Blind Squirrel Games. As of April 2019, it was reportedly cancelled. The new rating suggests the project may still be in the works.
Here is the full visible extent of the description provided by PEGI:
Mortal Kombat Kollection Online is the original Mortal Kombat trilogy that Mortal Kombat fans always wanted. Upgraded art, gameplay, and online features provide an incredible experience that revive the “klassics”…
And here is a screenshot:
Mortal Kombat publisher Warner Bros. Interactive Entertainment has yet to officially announce Mortal Kombat Kollection Online.