Thanks a lot for your answer.
Yeah, seems the best choice will be if she returns and apply for a visa from there.
And the last question please -
I am going to apply for my tier 1 extension at the start of July, and want to do it via premium service(same day), however site always shows no slots available? Can you recommend any solicitor whom i can apply to? There are so many around, with different price,etc, and dont know which of them are trustful and good? If any of you have any experience please let me know, or any trick to somehow get available slot for the start of July.