We have received confirmation from OGN and thisisgame.com stating Alliance will indeed be joining OGN Dota 2 Invitational showmatches while Star Series VII champion Na`Vi will not be participating.
@WilkoOlles I would say that we are focusing in getting back in form for november. Korea - MLG - DH.
— Jonathan Berg (@LodaBerg) October 10, 2013
Besides that, despite previous doubts, Nexon has confirmed DK's participation in the OGN Showmatch event. The previous rumour originated from a miscommunication, stating they are not joining OGN "tournament" but instead, their "showmatch".
Participating teams:
Alliance
Team Dignitas
Team DK
Fnatic
Team Liquid
Speed Gaming.int
Virtus.Pro
The newly announced OGN Dota 2 Invitational Super Match will be a month long showmatch tournament held in Korea between the four top teams from the Nexon Sponsorship League facing off against eight international teams and will be played every Monday and Thursday at 19:00 KST (12:00 CEST) starting on the 28th of October.
The so called Super Matches will be played in a style of "challenges", with each batch of international teams arriving in Korea for a week of games, to be replaced the next week by another batch of teams. The international teams will compete against the Korean representatives and one another, and the winners will take home a so far undisclosed amount of money. In addition, all expenses for the teams stay in Korea will be paid for them, just as we are accustomed to with The International.