mostlyharmless, there is much I can agree with in your above post. Development land at Avonmouth, Bristol has run out for further Industrial or commercial development with the only option being to allow building on even more of the Severn floodplain which is already causing problems. Portbury is also in similar circumstances with development planning already being harshly opposed in the nearby Swiss Valley.
Therefore with the Severn Crossing bridge tolls to be brought to an end in December, Monmouthshire and the surrounding area could be the next prime location for many companies wishing to locate near the intersections of the M4, M5 and M32 motorways and the excellent regional rail links to all areas of the country.
Bristol, Avonmouth and Portbury will I feel remain the prime draw for Business, but once over either of the Severn Crossings, the above three destinations are within a few minutes drive...TRAFFIC PERMITTING.
That, of course, is the big question if the attraction of the area is to be maintained. The transport infrastructure already needs to be hugely upgraded in the development circumstances already prevailing, and that at his point in time that is not forthcoming.
It will also be interesting to see what affinity the new arrivals both in people and in commercial interests build with the Welsh community that they come to live within or near too.