All the other girls try taking 1 step at a time with Tomoko. Asuka always takes ten or 100 steps at a time with her. Asuka is going to win at this rate.
I heard the director said sometging about executive meddling stopping him from having their romance happen in the show, but apparently, it's like Ryuko and Mako from Kill la Kill, confirmed canon by the creators, but not allowed to be shown.
^ It's still a great show, and while the company did stop their romance being shown on screen, the director himself confirmed that's the direction their relationship is meant to go, so you can enjoy an awesome anime, knowing that after the timeline of the series, these 2 will get together.