i would rather see 1st Gen remakes. i didnt really like diamond and pearl. it came out when i was in highschool and back then i was a gen 3 purist. i still kind of am, so if they do pearl/diamond remakes, i will buy them just to stay current, but i wont be super excited.
as for names, what could you do with it? you could use time and spaced based words like infinity and eternal, but that was sort of thrown out the window when they used alpha and omega for ruby and sapphire. when heart gold and soul silver came out, there were huge speculation that Burning Ruby and Aqua Sapphire would be coming out, they even had "screenshots" of Groudon and Kyogre on the bottom screen, moving like ho-oh and lugia. with each remake, they are trying to transcend to a higher level. Fire and Leaf was pretty basic. Heart and Soul are more complex. Alpha and Omega means the beginning and the end. so if they did remakes, you would have to go higher than a beginning and an end, so Infinite and Universal would probably be next. Infinite means never ending, and Universal means it spans across everything without end. with those two, you surpass the boundaries of Alpha and Omega, and go into something endless. so i think Infinite Diamond and Universal Pearl would be what i would call them.
as for names, what could you do with it? you could use time and spaced based words like infinity and eternal, but that was sort of thrown out the window when they used alpha and omega for ruby and sapphire. when heart gold and soul silver came out, there were huge speculation that Burning Ruby and Aqua Sapphire would be coming out, they even had "screenshots" of Groudon and Kyogre on the bottom screen, moving like ho-oh and lugia. with each remake, they are trying to transcend to a higher level. Fire and Leaf was pretty basic. Heart and Soul are more complex. Alpha and Omega means the beginning and the end. so if they did remakes, you would have to go higher than a beginning and an end, so Infinite and Universal would probably be next. Infinite means never ending, and Universal means it spans across everything without end. with those two, you surpass the boundaries of Alpha and Omega, and go into something endless. so i think Infinite Diamond and Universal Pearl would be what i would call them.