Even though there are three outbound routes via "RANBI" there are still restrictions that will apply. All traffic to Northern Europe (NE) will be on the northern route. Traffic to Southern Europe and North Africa (SE) on the middle route and traffic landing Bahrain on the southern route. This is done in anticipation of the routes extending into Bahrain in the near future.
If TWR can sequence them at the holding point to be NE-SE-NE-SE-Bah-etc then you can expect a very healthy flow.
A few things to keep in mind though:
1. Due to the convergence at BALUS, the 3 routes and o/flyers, flightlevels may be restricted at first. Summer is coming to an end so this will improve.
2. Offset for wake may not be possible due the proximity of the routes.
As with most radically new procedures there will be c0ckups at fist, but all in all this can only make things better.