I've been doing recon on this business since the "opening soon" sign went up a few weeks ago. It's in the strip mall on the northwest corner of Dutton Ave. and Sebastopol Rd.
I did a drive-by during lunch on Wednesday. They are open and serving bakery items (homemade cakes and pies) and drinks (coffee and traditional cold Mexican beverages) now and will start serving Michoacan ice creams and paletas in two weeks. I don't know if they are connected to the Michoacan ice cream place in Sonoma. No menus yet.
Michoacana Ice Cream and Coffee
1546 Sebastopol Rd
Santa Rosa, CA 95407
Michoacana Ice Cream
18495 Hwy 12, Sonoma, CA 95476