User blog comment:Ryanhussain14/Question that has been bugging me for a long time./@comment-24974663-20160501125938

I don't think so.

The reference about a "creature the US claims to be Godzilla that attacked New York in 1998" is obviously about the 98' film; but I think it's nothing more than an easter egg.

Yes, it cements the Zilla creature and the events of that movie into the broader Godzilla mythos but that doesn't have anything to do with the series cartoon. If you want to imagine the canon in that one universe to include Godzilla 98, Godzilla: The Series and GMK along with the original 1954 film; go for it.

Toho most likely doesn't have a stance on the matter.