I got a feeling they're going to get married, and have kids. They have a lot in common, and they seem like they just operate on the same frequency. I think both had feeling for each other in the house, DX's eviction week the time they spent together confirmed their feelings for each other, and they understood without telling each other out loud that they should probably take their relationship further, but not on tv. People saying they been a thing since jury, but decided to hide it from the public.
Most showmances don't last but nobody thought Nicole & Victor would last. Now they're married, and have a child together. Technically neither couple was a couple on the show (got together jury/post season).