Remember this is set post-Janeway/Voyager return so the Borg should be no more.
There must be thousands of cubes, spheres and whatever else lying dead in space for investigation and salvage. It will be interesting to see where the series (and Starfleet) go with it in terms of technological progress.
As an fyi, the new issue of SFX is out and there is a 15 page feature on Picard.