The My Little Pony website has been updated with a brand new banner showing off the Tell Your Tale. The updated description doesn't give a whole lot of details, but it does seem to hint that all the ponies live in Maretime Bay now:
Living in Maretime Bay, our Pony BESTIES are having a ton of fun together! These 5-minute episodes offer funny, fast paced stories that will have everypony in stitches.
Thanks to Soundshark for the heads up!