Big Chill and Chromastone confirmed for Alien X-tinction

Two new short advertisements has showed new footage of Alien X-tinction and Ben Gen 10. You can see my breakdown on the promos here.
The trailer shows our first look at Alternate Max's face and voice. Alternate Max's design is based on future Max's first design in the original series. as evidenced by his beard. His voice sounds gruff and deep, so it's unlikely that it's Paul Eiding.

Teen Ben, Alternate Max, Gwen and Grandpa Max

There is a new scene where we see all the Bens and Gwen 10 in a cave, with Omniverse Ben saying that they should synchronize their powers together. It sounds like Yuri Lowenthal has reprises his role as him. Also, UA and AF Ben both have blue jeans, unlike the last trailer. So this either means that UA Ben will change into green pants in Alien X-tinction to differentiate himself more, or it was simply a coloring error. 

The Bens, Gwens and Max

We also got confirmation that Chromastone will be used in Alien X-tinction by Alien Force Ben. Chromastone's arm can be seen next to Alternate Max when Team Tennyson are preparing for battle, along with Omniverse Ben, Ultimate Alien Ben and original series Ben as Bloxx, AmpFibian and Ripjaws, respectively. 

Chromastone, Bloxx, AmpFibian and Ripjaws

Xerge combat form, Big Chill, Bloxx and Rex Salazar

In another promo advertising Cartoon Network Arcade, we see footage of Ben transforming next to Rex and Bobo, and another scene where Max hugging Gwen and Ben, it is unknown which episode this footage is from. In the app itself, we can see silhouettes for characters that will appear in the three upcoming specials, such as Surge, President Gwen in armor, Agent Six, Rex, the Xerge in combat form and Bloxx. There is one interesting silhouette in the line-up, that being Big Chill, which confirms that Big Chill will be appearing physically in Alien X-tinction by Alien Force Ben, and not just as a hologram.

Alien X-tinction is airing in the US on April 11, 2021.