Oh, I can assure you that it will. It's just a question of fine-tuning the actual amount. Most civil servants have just had a 1% pay increase .. the MPs will get more than that.
Many of the better MPs will indeed be doing other things as well as being an MP. Take a look at what MPs are earning in addition to their 60k: http://www.publications.parliament.uk/pa/cm/cmregmem/130507/130507.pdf