The sheer amount of subscription services and streaming services, that were announced/further touted just this year, should tell you where this industry is heading and the inevitability of it. Microsoft will speak of offering both subscription and traditional methods of selling games, but I feel this is only being said to appease the customer and developers who have concerns at the start of the transition. Those who are afraid of change.
Developers need to be prepared for this inevitability and weigh up their options to get the most value from their work. It's obviously going to be a hard time for them at first because so much is unpredictable. The thing with these subscription models being so new, we haven't really got any idea of market leaders outside of the initial "hype". So who do the developers pick? "X company is offering me a larger percentage, but are there more people going to be playing on this other platform offered by a different company?". The uncertainty is absolutely a concern for them.
So what for the customer? A subscription service will certainly offer better value for them and open up a whole library of other games for them to try and discover. How often do we see great games that don't get the sales they deserve? I've personally seen many games that I'd love to try, that have been lovingly talked up on this forum, that I'm hesitant to drop ÂŁ20-50 on because, "I might like it, I might not, but that other game that I REALLY want to play is being released in a couple of weeks. I need to save my money for that". I'm not sure how popular this line of thought is, but I bet it's not rare. With a subscription model, I don't have that concern, I'll just load up whatever platform I use.
But how does this translate to value for the developer? How many people need to play their game on a subscription service for it to equal one physical/Digital sale? How much does this impact the way developers make games and what games they make? Is it more beneficial for them to make games based on time played, or instances played? Does their payment model change on the type of developer they are and the games they make, or is the platform offering a universal model? Would a Universal model encourage a lack of variety, benefiting a certain genre more than others? THAT impacts the customer. You wake up one day to find out everything is... I don't know, Point & Click adventure games. Why? Because they make more money than every other genre because of the universal model used by the subscription company.
I'm personally all for a subscription future, but it's only right that both customers and developers have concerns and vocalise them to make sure that we get the best version for everyone.