There isn't a one stratefy to rule them all. If you want to be profitable you always have to adapt according to the market conditions!
but there are also times when old strategies work again, although at some point you'll have to revise your strategy again while adding the newer ones. as you've have said that it depends on the market conditions, and i still believe that some old patterns are still useful in todays trading style. still for one to become a seasoned trader, you still need to experience more trading patterns or should i say it is the culmination of your accumulated experience in trading.
Old strategies added by recent strategy will work better especially if we know how to deal with the market. There's no specific strategy that will work all the time but things will depend on how we apply them effectively. Old strategies aren't actually old, they were just innovated and improved to work better in the current market situation that we have. Applying and trying out new techniques is also part of a trader's learning and growth.
There's no such thing about being old or new because it would really be just the same on sharing up on the same purpose which is to make some analysis out of it.The thing on here is that we do really continue
to become more better as the time goes by on which you would be generating new which would be adding up into those previous strategies that you do have before.Its up to you on which
one you would be using and making as long it would really be that relevant towards your trading and something that benefits you out then this is what matter the most.
Continue to learn up and continue to progress no matter how many strategies would be making out and generated.