We'll see. Clara's personality was a bit flirtatious. However, I'm not sure if she would be so with Capaldi. 
But yeah I hope the shows focus more on action than romance. A bit of romance in the show is not bad but turning the show where the characters are "fawning" over him [Martha!] isn't as cool.
I liked how they did Ten and Donna. There was no romance between the two and it worked out.