I understand what you're trying to achieve, but the creation of two smaller hives solely for the purpose of pitting them against each other is a waste of resources: Both for the investments into the hives themselves and for the loss of possible resources for the main hive as two smaller hives fight for resources we don't currently control in order to wage war with each other. 

Also, the development of 'Warlord' variant Princes to requirements asked would be a timely, resource intensive process that the hive cannot afford at this time. Alternative Suggestion: develop a strain of Princes with defensive military improvements, increased sensory systems and turning the advanced intelligence of the Prince caste towards tactical matters. Let them serve as a leading figure for the warriors to better coordinate and plan defenses and possible future campaigns for the hive.