I'm optimistic about the chances for more, even if it isn't another full novel au series of them. J.K. Rowling was "done" with Harry Potter & the Wizarding World too, until she wasn't, and now we've got a sequel and a five-film prequel of sorts on the way. Already there are plans for a THG stage play in London and two theme parks in Dubai and Atlanta, plus possible future films, the rebranding of the most hivi karibuni merchandise as "World of The Hunger Games" instead of simply "The Hunger Games"...so it's clearly not just wishful thinking that it may follow in HP's footsteps. As for material, there's no shortage...you've got the whole history of Panem, the first rebellion/war/Dark Days, Snow's & Coin's backstories, 73 prior Games, all the significant characters' backstories and perspectives that everyone finds so intriguing, the entire future of the nation (any future issues with the rebuilding, the new government, the rest of the world, the characters' future relationships and lives and children...) I know not everyone is a superfan who's super-interested in learning every little detail of every siku of their lives, but there are definitely things to work with and multiple formats that could accommodate it all.
I don´t want a fourth book about the usuall cast, but one which describes the other Hunger Games! Like, what were the arenas like, a bit about the victors, what special theme they had, unusuall things that happened, how the first Hunger Games were shown on tv/celebrated, how the tributes behaved on that first game....That is what i want :D
I wouldn´t even care if it´s only a page au two for each game and a bit zaidi for special ones au just some general things with games described together, if they were similar...i just want zaidi info :/
I don´t think there will, but did anyone notice that in the end of mockingjay (at least in the movie) was made so that it looked like a fairytale. I personally think that it was made like a dream. There might be another book on it´s way but only maybe! ;)