According to the hotel committee reports we average more hotel rooms there per night then any other station. That, plus the MX hangar makes it a prime candidate for a base.
The issue is from what I have been told the overnights are split between the CRJ and ERJ fleets so it's not worth it to open a base there. If all the overnights were on one fleet it would have already happened IMO.
There is an argument for "economies of scale" here: adding a fleet type to a domicile is cheaper then opening the domicile for the first time. So eventually the company may just decide to have both, but IMO unless hotel costs climb that won't happen.