In the next godzilla movie i would like to see godzilla to battle megalon.

That will be a good fight. What I want to see is MecaGodzilla vs Godzilla or King ghidorah vs Godzilla, that will be cool too.

It has been done. Godzilla vs. Megalon was one of the cheesiest of the Showa films, and should not be repeated in my honest opinion.

Like I've said before, Toho monsters don't belong in this Legendary Pictures and WB franchise. Both studios, even though it's really just Legendary now since WB split from them, have enough creativity and originality to create a franchise of their own creations and make it succeed.

Copying Toho's success is nothing short of contrived, forced, irresponsible, and disrespectful to the original source material.

If Legendary can't make a successful franchise with their own creativity and originality, then they don't deserve to work with the material at all.

yeah i agree with KYERO, apparently  Gvs Megalon is what gave godzilla the bad repuation he has to this day, also i'd preffer if they used original monsters because unlike superhero movies which has your fans and audiences to have an existing known villian, with godzilla it is quite flexible on the monster, despite how iconic mothra and king ghidorah are, they are not the same as having the joker in a batman movie series, they will most likely make originals and some that a homage or inspired by tohos monsters heck maybe the PR kaiju may have influence in the sequels.

I got a feeling they're going to create new monsters since this is an American Godzilla film, but yeah Megalon would be great in a sequel.