Given that when the comp tickets were issued it was for a franchise that was meant to run until March 2025, I shall ensure I use all my existing Northern Comp tickets by then. The existing liabilities will transfer to the new operator(s) of the franchise so I don't think it is unreasonable to use them up by then. I can't find the exact date in March 2025 the franchise was meant to run until. Another interesting question, if the new holder gets rid of the comp tickets, what if you are unfortunate to be delayed while using one? At least under the current scheme you are safeguarded in that if you are unfortunate to be delayed again, you might get another free journey. This is no different to if a customer used a RTV or the money they were paid in compensation from a claim to get another paper ticket, they could claim again.
It will be interesting to see if the compensation method of free tickets continues. The idea was started by old Northern in that for Customer Service/severe delay complaints they would sometimes send a ticket allowing free travel for a day or 2. Then when Arriva Rail North took the franchise over they offered these as part of their delay repay scheme. Interestingly Arriva do not offer such an option with their other UK franchises (such as on Chiltern or Cross Country). I wonder if this is because the value of a typical journey is either local or Regional. Rater then from one end of the UK to the other (Aberdeen to Penzance). Of course, there are those of us who will do long distance journeys using these Northern tickets (Liverpool to Newcastle, Carlisle to Nottingham) but, compared to the number they give out, we are most likely a minority.
Given that compensation now has to be paid as "cash" (be that BACs/card payment), offering customers something of slightly more value but at no real cost to the company is arguably a revenue neutral way of issuing compensation - although if the customer used one for a journey they would have otherwise purchased a ticket, there could have said to be something of a loss.
Either way, I shall intend using my comps until 2025.