The second season of Free! some time ago was announced as possible by the creators, and now, the end card from the last episode CONFIRMS IT!
Just about 3 more hours of waiting for the subbed episode!
I agree with what animeperson223 says.
What other proof do you have besides that I have watched the last episode and many animes long and short sometime have similar fin credits when they say the series is completed and finishing. That doesn’t mean they'll be another season FISC was never supposed to be made an anime it was only done so by popular demand after the first PV commercial.
THIS SHOW IS TOO FANTASTIC TO END NOW
So it was so obvious xD
LOL my heart just jumped. xD