Except for when the point was made without spacing and too many abbreviations that made it a job to try to even decipher what was said let alone what the point was.
According to people familiar with Twitter's plans, speaking with Re/code, the project is referred to as "Beyond 140" and has a tentative launch window around the end of Q1 2016.
It's a combination of different things, spanning from figuring out what the increase would actually be, where it would apply, how it would affect different places, trying out various different options, doing user studies on those different options, tweaking the options, narrowing them down, doing a full implementation of one or a few of them, doing some actual end-user bucket (A/B) testing, perhaps doing some more tweaks on it, and actually releasing it as an actual feature. Definitely a whole lot of things from a whole lot of people and departments beyond development that go into even small (as far as the general one sentence idea at least) changes like this.
I can see them increasing the limit but not from 140 to 10,000. Tweets should be short so why not just go the easier route and simply double it to 280 instead?