Here's a radar map progression on my Pergamum campaign (started after SVN was used).
Summer 542AUC:
Summer 569AUC:
Summer 576AUC:
Winter 590AUC:
Current Diplomatic for Pergamum:
Financial
Nation and Overall Ranking
Overview - Financial
Overview - Military
Overview - Population
Overview - Production
Overview - Territory
I've had several looks around the map during the campaign and only found two occasions where there was a large grouping of armies - on both occasions they were Roman.
Summer 569AUC - Genoa
Summer 576AUC - Roma
Most of these armies appear to have been sent off towards the NE as this is the direction that Rome is advancing. No large clumps of armies just one or two stacks at most.