Fwiw, I don't think they'll add Siena. They don't add much of a market. That's Syracuse country. They have s decent program and arena but don't offer much else moving forward.
Well no, it's not really Syracuse country, except perhaps to people who live in cosmopolitan Commack and think everything north of White Plains is in the artic circle. In fact, Loudonville is about equidistant from Syracuse and Queens. It's Syracuse country to the extent that Albany is the capital of New York and Syracuse is NY's team. Other than that, not so much.
Here's what Siena brings to the table. A nicer campus than SJ, in a nicer community than Jamaica. Better academics than SJ. A better fan base than SJ. Better facilities than SJ. Greater NCAA tournament success than SJ. A more successful coaching tree (McCaffery, Orr, Deane) than SJ. An administration that's more commmitted to the success of the BB program than is SJ. Other than that you're right, they bring nothing to the table.
Without SJ having had the good fortune to step in a great big steaming pile of Lavin only the most delusional of SJ fans - that would be you incidentally - would not have aspired to Siena's level of success. Because the MAAC was where SJ was headed on a good day.
What Siena doesn't bring to the table is (1) an antedeluvian BB history (2) a coach who's capable of bringing in top 100 recruits and (3) a vitamin water billionaire. In a better conference they're certainly capable of competing against Seton Hall and Detroit Mercy.