Too many TB combat missions

With introduction of new TB locations and special missions, the quantity of TB missions became overbearing. New missions are nice and demanding, but they do not replace old missions(which take time to accomplish) and with increased quantity of missions they take universality huge amount of time. 
There are different ways to decrease either quantity or consumption of time required: from simulation to locking old areas in favor of new ones(ex. If you opened Mandalore - Taooine will be locked for combat missions) and you'll recieve 3* their, etc.
But main topic is about problem only and devs are required to address it in any plausible way.