The first treasure pod on the list is the new Starlight Strand pod.

It is located around the end of the map in the Strand.

To enter the cave enter this hole where the Flutter Slime gordo is at, you will have to pop the gordo by feeding it Nectar to enter the cave.

The 17th treasure pod is located in the lower parts of the Rainbow Fields.

This treasure pod is located next to one of the portals used to teleport to the Starlight Strand.

Here is it's location on the map.

The final treasure pod added in the new update is located once again in the Rainbow Fields.

This treasure pod is located around the top of the Rainbow Fields in a cave, its next to a portal to the Ember Valley.

Here is it's location on the map.

I created this guide because finding all the treasure pods can usually be a more boring part of Slime Rancher in both of the games, I hope this guide helps you get all the new treasure pods so you can move right to the new content to not have to worry about finding all the pesky pods!
Thanks for using my guide and hope you're having fun in the new SL2 update!

None of the pods in the new update are needed for progression, the only rewards from them are resources, no needed blueprints or blueprints in general.