Interesting. It's no surprise to see Kelson Henderson show up again, but it is a surprise to see him reprising a previous character. Bringing Mick back helps create some inter-series continuity, which seems to be something Hasbro is playing up more. It reminds me of how the Showa-era Kamen Rider series had mentor characters who recurred in consecutive seasons -- Tachibana for the first five shows and Tani for the 1979-81 revival. Or, of course, recurring Power Rangers characters like Buk and Skull.
It's amusing that the upcoming Power Rangers season has an alien Red with four human partners, and the upcoming Super Sentai season has a human Red with four alien robot partners. It's pretty uncommon for the Red Ranger to be the exotic one, though we did previously have an alien Red in Space's Andros, while Mack in Operation Overdrive also turned out to be nonhuman. In Sentai, there have been a few all-alien teams (Goseiger, Gokaiger, Kyuranger), but Banban in Dekaranger is the only case I can think of where Sentai had a non-Terran Red Ranger on a team of Earth humans. Banban's alienness never really came up, though.
In both franchises, when Red is the odd one out, it's more common for him to be the most normal guy in the team, e.g. the only present-day team member in Timeranger/Time Force, the only human member in Zyuohger and Zenkaiger, the only ordinary, non-genius member in Megaranger and Kiramager. And Power Rangers has often gone to the well of having the Red Ranger be an everyman who stumbles into leadership of a team of highly trained experts -- Lost Galaxy, SPD, Beast Morphers (though Zoey and Devon both qualify there).
I'd guess that the new dinosaur ally character will be taking the place of Tyramigo, and that the "T-Rex Champion Zord" will just be a Zord rather than a character.
