Nooo! I wasn't expecting it to end this fast. I hope it doesn't have a bad ending.

its gonna be sucks if the it will be end within just 11 chapters

^^; Wouldn't it be more likely that he would just continue it in tankouban form, though? Slower releases would suck, though. =/ I don't think it's actually going to end, though.

Alot of people mention that eleven chapters isn't enough to do this in, and thats most likely true.

However, there's always a chance they do double chapters, which multiplies the total count of remaining chapters to 22. It becomes possible then. Thats my theory, anyways.

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Wouldn't 11 chapters be enough if Seigaku lost the at the Nationals?

And why ? Is there an official statemant or something ?

There's no official statement but people have been assuming that all five finals matches will be played. If the next few chapters showcased Seigaku losing Doubles 2 and Singles 2, there will a few chapters left the give it an ending albeit a rushed one.

but then the series would be too open-ended and it's opening way for a whole 'nother try at the nationals

Whiskey. Tango. Foxtrot.

Right now it looks like they've lost D2, so they have to win the next 3. Which brings up the question who is play S2 ... Fuji vs ?

There could always be a Prince of Tennis 2. After all, Echizen is only a 1st year. It would be a real bummer, but it would make some realistic sense.