Both where announced on the Leaflet that comes with the current Dengeki Bunko Releases:
I would assume that there will be more Information when the next Dengeki Event happens on the 13th.
Not really an suprising announcment considering how popular Mahouka is and Tsukasa Fushimi’s last Anime-Adaption also sold well.
Personally I think Zero kara Hajimeru Mahou no Sho should be one of the next series from Dengeki Bunko that is getting Anime-Adaption. Maybe we get even more Annoucments on the 13th.