Maybe not "after" but i decided to look into available info on overwatches esport scene as a whole, not only THE overwatch league (owl in short) that everyone is waiting once it starts.
Lets start by looking at official blizzard site for owl (link to the site), while on the first look it might seem like there is nothing interesting there except for information already reported but if we look closely we can finde something interesting, this picture tells us owl is still at the "announcment" stage yet the league is still set to start this year.
Now lets move to the trailer and again, alot of content but not much substans but we can again finde something interesting. Trailer mentiones that:
early next year, before season play commences the overwatch league will conduct a combine
and that prodably already happened (although it wasnt "early" this year) after owl commissioner sent an email survey to "a select group of top players" asking them, if they want to be included in the scouting report, which will be available to all Overwatch League team owners on 27 of june. (source)
Now i'll move to information in espn articles starting with the original announcement of the first 7 cities in owl to which link is here.
And we finally get some concrete information
The inaugural season is set to take place in Los Angeles to accommodate teams already stationed there. The regular season games are set to take place on Thursdays, Fridays and Saturdays. The teams are allowed to run up to five amateur tournaments in their respective regions, such as the Online Division and Regional Contenders.
First we get information about the format and place of the first owl season but for me more important is information about the "amateur tournament". In my opinion this short sentence tell us more about the structure of overwatch esport scene then all the other information combined.
Overwatch league is going to be a top tier tournament with geolocated teams and top players from each region taking place once in a few months or maybe once a year. But most of the time we'll prodably be watching regional (aka amateur) events in which all the teams that are not in owl will also take part. A lot of these event we are prodably already familiar with such as APEX, Premier Series, Pacific Championship, South American Overwatch Circuit and more but we might also see other big companies such as esl and dreamhack.
I've left out contenders because it is blizzards tournament and from what we can see it will prodably be overwatches 2nd league and along with all the rest of tournamets outside owl a scouting ground for teams with a spot to create, or pick up the best team for the next owl season.
I'm not very familiar with League of legends as i've never even played this game but i still know something about the scene and from what i can see owl is going to be very simmilar to riots format. (or maybe im totaly wrong about lols esport scene format? pls tell me if im wrong)
In this article its mentioned that Blizzard told SportsBusiness Journal that they eventually hope to sell 28 permanent franchises that might seem like not much but if they'll be all in one league (no separated eu, na, asia) it is actually quite a lot.
With the goal of 12 for the first season (technicly 12-16 but 16 doesnt seem likely) and 9 officaly anounced and 10th spot rumoured as dallas by team envyus we have only 2 more to go.
Now moving to the latest announcement that Overwatch League teams are required to create new geolocated brands (link here), there is really not much to add to this, teams we will see in the first season of owl will be the same teams as for the last season.
All this is my interpretation of available information, if i missed some thing let me know
Full list of teams confirmed so far for owl: https://www.over.gg/5409/overwatch-league-teams
all the links to sources:
https://overwatchleague.com/en-gb
https://www.youtube.com/watch?v=MJI9WXBWmso&ab_channel=OverwatchEU
https://overwatchleague.com/en-us/news/20873062
http://www.espn.co.uk/esports/story/_/id/19972188/blizzard-announces-team-owners-locations-overwatch-league
http://www.espn.com/esports/story/_/id/20298968/cloud9-buys-london-kroenkes-grab-la-overwatch-league-spots