Hmm I did'nt think that the recover catchphrase could be referring to the 5th installment itself. Interesting.
How was S3's performance anyway? I know S4's sales figures were rather misleading when compared to the kind of reception that it got...
From what I understay, Suiko 3's perfromance was decent. It got rave reviews in magazines and it got word of mouth on the net so maybe along the lines of of 100,00 copies, more or less. It did'nt get a "greatest hits" title so it less than 500,000.
Suiko 4 got terrible reviews and it also got word of mouth here and other forums so probably less than what Suiko 3 made. This is just specualtion BTW.