Doesn’t it say that the Yetzer Hora will be abolished when Moshiach comes? Internet can therefore stay without a need for anything.
And i don’t actually understand the Rambam – doesn’t the Midrash say that pig is called Chazir because ‘Sheosid Lehachziro’ – it is destined to be returned? There are dozens of midrashim that tell of the time when Moshiach comes, and none of them sound like our world! Like the Goyim will be serving us, Snakes will get feet back and be our business managers, that Lions and lambs will live together in peace and harmony… no lack of prophecies!
Besides for that, there are many Rishonim who argue with the Rambam.