I pray that they don't make her significant contribution relationship related and drop the love triangle aspect ASAP! A woman can serve under a man without fancyng him (apart from Janice obviously).
I think her success will mean that Zoe has more clout to lobby for a more significant role. Uhura can shine if they find a reason to get her off the ship but personally I think she and McCoy will keep about equal as second tier characters.