The movement is too optimized at this point. I expect at most 10-20 more seconds can be saved, maybe a minute with TAS. People will continue competing for a while, but it would take inhuman luck in addition to perfect execution to beat this time. I wouldn't be surprised if this record stands forever.

Mod Note: It's very unfortunate that a route change was found that skips all world 5 and 6 levels, therefore invalidating this as a WR :( . Also, goddamn, your LiveSplit was spot on, down to the frame.

Timing proof. // https://imgur.com/a/sFTHjAL