Having voted for the Merger and offered himself as a candidate, I woudln't think Omega is going to split the vote by running on his own ticket just because Attack or the Cameron character are probably going to win the pro-merger primary. Only anti-merger Whigs would really have the legitimacy to run in a Whig only primary following the results of the pro-merger (National Union) primary going on now. And that would probably amount to Your Worst Nightmare voting for Caesar. So the question of radical whigs is really kind of out of the question, this cycle. I have a feeling Omega and the entire abolitionist lobby are going to be back to the Whigs in the next election rather than keep on running National Union after the immediate objective of stealing SNP thunder is accomplished.
So my prediction is that Attack will win the merger vote, the Cameron character (whose the player?) will be runner up, I and maybe some others will try to get Cameron to step down in favor of King as VP in order to not drive King and the rest of his supporters to run on the Whig ticket and split the anti-SNP vote, if King is mollified either way Caesar Vinograd will probably run in the presidential election if BBB keeps all three tickets running and not just SNP and National Union.
Similarly to the situation the Arthur King (Omega) is in with this primary, I imagine if it was a moderate Whig, Omega/King promising to moderate, or even a moderate Democrat likely to get the National Union nod that McAttack/Attack might have contemplated a solo run on the pure Democratic ticket the same way Omega/King is probably contemplating a solo run on the pure Whig ticket. However that's not going to be a problem as the non-moderate Democrat McAttack is still doing the best in the National Union primary, primarily due to the moderate Democrats preferring a non-moderate but non-SNP Dem to a moderate Whig like Cameron.
The race, BBB willing, will probably go something like this: McAttack (National Union) vs. Davis (SNP) vs. Caesar Vinograd (Whig) - with Vinograd getting 1 vote, Davis getting the whole SNP cadre's votes, and McAttack being the winner by getting the "Hold your Nose" vote from every serious anti-SNP person who doesn't think Vinograd would have a chance, given his poor showing in Whig primaries in the previous election.
But there is always the possibility that, denied the President and VP slot on the National Union, Omega/Arthur King might run as the Whig, given its not even a moderate Democrat who has won the NU primary but old style Democrat diehard McAttack.