Look, those who said it is fake, I am very sorry that I did not believe you at first, they do look suspicious, yeah, but I never had the nerve to even think that someone could be really faking it all along, though I am not surprised, so all in all, I can say that these are fake, so sorry for any inconvenience..
I am terribly sorry for thinking this was real, I will make a update status update following this..
According to an additional Game designer, Theodore Bialek, Vicarious Visions was in the process of making a fifth GBA Crash game for their portfolio of games, unfortunately for unknown reasons, it was cancelled, it should be noted that this is NOT the same game seen from the 2013 poster leak.
Source: A comment from Unseen64
Screenshots (So far):