If you remember my post last December 2015 on (Alcatel) Flash 2's possible release of Android Marshmallow OTA which in March 2016, looks like those who have it will have to wait a little longer.
As posted by Osama of the official community page for Flash 2, the expected timeline for the stable version of the said OS might be this end of May or early June 2016. They are going to update the baseline with the latest Mediatek (MTK) update.
They are also coming up with a round of test this mid-April which they are calling for possible testers.
Via 1