You have all the things you love from D&D. You may find you love some new element, but you may also find that you don't. That doesn't diminish the things you love. Especially since they are more available now than they have been since their original publication.Well sure, but that only works the way you say if you stop caring. I never stopped caring about the stuff in D&D to which I am now told I am irrelevant.
And if it isn't the specifics but the feel and flavor, I can guarantee you there is plenty out there to get you that stuff right now.