Professor Wayne King-Meiouf of the University of ProximaWorm drive will make the galaxy smaller than anything we've yet seen. In a short space of time ship speeds have been increased 20 fold to 5000c (lets not forget that 500c is closer to the average speed of the DDS fleet than 1000c that only a few ships can reach with hyperspace drives). This can only have a dramatic effect on how the DDS operates and how it sees the galaxy and its relations with it.
It may be easier to look at a concrete example. Lets take the distance between Proxima 7 and Starbot which is 50 light years (its actually 50.7 but lets round it down for ease of calculation, i've chosen Starbot for ease of calculation but also as it is one of the furthest points of the DDS from GHQ).
This distance of 50 light years means that a ship that can only go 1c would take 50 years to get there at least (and in practice quite a bit longer with time taken up recharging hyperspace drives, cooling down generators and the like).
Of course no ship only goes 1c these days, but a ship that can cruise at 500c will still take over a month to make the journey. Around 36 days continuous travel in fact, usually a Provider can make the journey in around 44 days. Its managable but obviously does tie up an asset for quite some time. A cargo trip to and from Starbot ties up a transport for several months.
Even faster ships take some time, on average something like an Isometric would manage 800c over the trip, taking around a month. Pulsar cruiser SS Europa made the journey back from Starbot to Solaris (46 light years) in just over 3 weeks, they really caned the old bird!
With worm drive this changes totally, a worm drive equipped ship can (in theory) make the journey in 3.6 days! In practice it takes around 5-6 days with recharging and also hyperspace travel to take up the final part of the journey. Even so it makes a huge difference to the DDS' strategic abilities. The Rapid Reaction Force has already been set up and a worm drive equipped ship can reach any point in the core DDS from Proxima Centauri within a day.
Planets once many months away are now within a few weeks travel time, this should lead to a great expansion of the territory the DDS considers its' sphere of influence with new potential allies and customers within reach for the first time, and new potential enemies too of course.
One final thing to add, worm drive brings the capital of the Tarbot Empire within a month's journey time. A blessing or a curse... depending on your point of view, and who has worm drive. Over time the technology will leak to other powers and we may find the comfort of distance no longer applies.
