Are you saying that the writers (in this case the Star Trek writers) are incapable of writing a relationship story that last longer than one movie? Or one that has continuity? Or one that is interesting and fresh.
Lol - well, it's not my fault - I was rooting for Marion Ravenwood to be in the first Indiana Jones sequel - she was awesome and they wrote in some other bimbo love interest instead. Hollywood has a tradition of not wanting to show stable, settled long term relationships in sequels. Uhura is far more likely to die than she is to settle down and have children - that's just the way Hollywood writers seem to work.
Come up with some examples of where they continued to explore an ongoing relationship in a bockbuster movie and lets see how many examples we have.
Plus this isn't a soap opera or a chick flick, it's action sci fi. Any relationships we get have to chime in with the main sci fi plot or they become a distraction. So what do we have to explore with Spock and Uhura's relationship that will chime in with the main sci plot?
1. His inability to express emotion and/or her level of understanding that this is what vulcans are all about?
2. His ongoing trauma?
3. The fact that his sperm is needed to repopulate his species but he's a skanky half-breed so who'd want him?
4. What if he lets his extremely intense emotions and by extension feelings for Uhura to interfere with command decisions involving her deployment?
5. What if he lets his extremely intense emotions and by extension feelings for Uhura to inflict violence upon her like he did with Kirk?
I agree that there is a lot of stuff to explore but none of it involves him giving her vulcan acupressure while she cooks him a bowl of plomek soup.
Overall, yes, I don't want Spock and Uhura to dominate the sequel and I don't think they will. I fully expect Kirk to get a love interest and I fully expect that to be given more coverage than Spock/Uhura. On the other hand I'd be livid if they killed her and I DO want to see their relationship explored further.