I doubt very much that Deimos would marry Kate at all....She obviously is worried and jealous about Nicole, but she is the one in bed with this guy. She stupidly already sold him Basic Black, in exchange for being CEO of Titan..but Deimos is insisting on a pre-nup. LOL, That will not sit well with Kate, not at all.
And I truly hope the writers do not allow Deimos to control every business in Salem. Ugh. He wants DJ Wear, and Nicole is agreeing to sell in her plan to take him down.
(However, am guessing that this could be the writers' way of getting rid of businesses with no offices, file cabinets, etc. LOL I mean, it is a laughing joke all over how these big companies operate out of a cellphone & a table in the square.