This was one of the best ideas they've decided on. It's always good to reinvent yourself, to avoid falling in the grooves. And likely that I will.
I personally think there was a lot more they could've done with Ruby and Sapphire.
I tend to put very little emphasis on pairings, but here's a few I kept:
Haibara Ai x Mouri Ran (Detective Conan)
Miki Sayaka x Sakura Kyoko (Puella Magi Madoka Magica)
Kamijou Touma x Mikoto Misaka (To Aru Kagaku no Railgun/To Aru Majutsu no Index)