I nevery played the history Edition of the game. But a lot of people compalain that the game is not ready for higher resolutions as you
can not properly zoom. Also some bugs still persist and some sounds have been altered to the worse.
If you really want a close to original experience (including singleplayer campaign) you may go with the history edition.
If you'd like to have a slightly better AI, some smaller Addons which can change the gameplay quite a bit and you may also like to play
multiplayer some day or you simply want seafaring on non campaign maps - you may go with rttr.
You can also try RttR right now as you own the original (and got the DATA and GFX folder for RttR) and then you might be happy with
what you have ;)