Why aren't people reading all of the changes before making a thread about the new premade 2-5?
They are updating Champion select so you ll get a better chance of playing two desired roles you prefer. Which will eliminate Troll picking and disagreements of pick order. ( For people in threads complaining about people wont be able to play their roles because of premades) http://na.leagueoflegends.com/en/site/2016-season-update/new-champ-select.html
Yeah, being a odd man out of a 4 man premade may seem intimidating but you shouldn't falter! You are more likely to learn from them and become a better player. I myself have learned a lot playing on ranked 5 teams, which then helped me in solo queue. http://na.leagueoflegends.com/en/site/2016-season-update/ranked-improvements.html
With the new club( guild/Faction ) players will be able to join communities that will complement the new premade changes to ranked queue. Making it easier to get through rank with people of the same elo. Instead of being frustrated about being stuck, they can help you improve on things you are lacking. http://na.leagueoflegends.com/en/site/2016-season-update/social.html#parties