Ummm... the only concept art I've seen is for the red and pink zords. Could you share a link to this new concept art you'r referencing?

Absolutely This was the first link I found while searching for concept images.
http://www.kdramastars.com/articles/...t-megazord.htm

...
http://davidfernandezart.deviantart.com/gallery/

http://fpeniche.deviantart.com/art/P...nger-402532971

And the Megazords are concepts from way back in the day.

The only Gundam vibe I get from the Megazord is that 2nd design, which looks a bit like Epyon.

Ok... and you didn't find it odd that an article posted just over a year ago would still contain supposed concept art? Stuff like that doesn't stay up for long.

As for the Megazord artwork in-particular, I'm not sure if this is true, but I remember reading that those pieces were some of the original artwork for the Sentai series. Again, not sure if that's true, but that's how they were first presented to me.

Its concept art from the original MMPR when they planned to keep the original set of Zords for the second season instead of changing to the thunder zords.

Ok, that's kinda interesting.

Kdramastars is known for terrible click bait. Never believe what they post unless they have something to back it up.

Oh well thanks for that help guys I'll adimt I'm terrible at finding things like that