The metaphysicist class, the class that redefines summoning to include more than a pet, has been revised and is available for playtest. You can always find active playtests on the D&D Playtest page: https://therincreative.com/dndplaytest/, including the Expanded Rogue.
Your participation in the playtests is extremely valuable. As a solo developer, it takes critical amounts of time to test things, and every report or account you guys provide speeds that process along.
Click this line for a direct link to the class PDF.
Feedback is easiest shared on https://reddit.com/r/TherinCreative/, but you are welcome to use any of the social media options linked on this site.