Please tell me where the proof is that the Networkers will get a refurbishment. Then, tell me where the proof is that they'll have changes to seating layout, a new PIS, or whatever else has been suggested in this thread. Until then, it is baseless speculation, which would be far better off
here. So far there is no hint that there will be a refurbishment, let alone one that will be anything more than a light refresh, especially when the replacement for the fleet and possibly others too is due before the end of the decade.