How long will this continue?

For similar disputes Transport for Wales, Greater Anglia and now Northern https://www.rmt.org.uk/news/rmt-suspends-northern-strike-action/ have resolved their disputes or RMT have suspended industrial action. This does raise the question what ulterior motives are involved. Is SWR awaiting permission from DfT to make similar agreements? Is the DfT compensation for strike days "easy money" compared to running a train service? Does anyone in SWR management actually care?