Reimaning is a word that's being tossed around awfully a lot nowadays, though it's just a fancy way to say "remake" without saying, "it's a remake, but they changed some aspects of the game". Back in the day, "remake" meant all of the above, including reinterpretations. But, the term "remake"(as quoted from Merriam-Webster) means "to make anew or in a different form", which basically means that "reimagining" is included under the term "remake".
The reason why terms "reimagining" and "reboot" are being tossed around is because, seemingly, there's a stigma attached to the word "remake", kinda like everything associated with the word "remake" is bad, hence people have to find ways to tippytoe around using that word out of fear of association.