The big news from that rumor was a new mode. Here's what the source said at the time:
When starting up X 10 Run for the first time, players are told that Princess Daisy is in trouble, and it’s up to the player to rescue her. X 10 Run asks for...
A new kind of Mario game that you can play with one hand.
In this game, Mario constantly moves forward through the courses while you use a variety of jumps to navigate. Mario will behave differently depending on the timing of your taps, so it's up to you to show off particularly smooth moves, gather coins, and reach the goal.
Any new players who want to add some friends to compare scores with, I'm 4331-3123-1872
I will have to dust it off and give the new content a try.
Thinking of picking it up for half off. But I still haven't completed the demo yet.
This is cool news. I look forward to checking it out again!