Purists will disagree, but I do think that continuing a "traditional" approach will kill the series.
Any long-running franchise sooner or later has to change with the times somehow. Resident Evil and a big portion of the Japanese "Survival Horror" genre for example would have just vanished in the early 2000s if it wasn't for the need that Capcom had to make Resident Evil 4 a success.
There are many factors why RE4 ended up being the way it did and many reasons why it affected the franchise and the more old school portion of the fanbase the way it did. But really, all the changes were for the better because RE was at a point that it needed change.
You can argue that RE needs change too after RE6, but what it really needs is an expansion of what RE6 is and see what approach to horror The Evil Within has in store to properly evolve RE7.
...though the type of horror in TEW is more about messing with your perception than the literal approach of fighting the horror RE has always had. Either way developing games for a series can be a pain in ass, especially when you have an audience to take into account.