The next round of cameras coming from Sony are rumored to be entry-level models. Specifically, the mirrorless Sony NEX-3N is rumored to fill in the place of the current (and excellent) Sony NEX-F3.
Additionally, a pair of SLT Alpha models – the A38 and A58 – should replace the current A37 and A57. Both of the current models feature a 16.1MP APS-C sensor. While the A58 is rumored to include a new APS-C sensor (my guess is the 24MP sensor we see the NEX-7), the A38 would likely stick with the legacy 16.1MP sensor to further differentiate the feature sets of these entry-level cameras. AVCHD 2.0 (with its fun 60p frame rate), at a minimum, should appear in the A58 and could also show up in the A38 if the sensors and other features are different enough.
One of the best things Sony did in its last round of product updates was introduce the standard ISO hot shoe for speedlights. And, if the rumors hold true, that trend should continue with all three of these models.
The precise announcement date hasn’t been confirmed or otherwise predicted yet; however, I would expect at least two of these cameras before the end of March.