No-there's much to be discovered about the phase diagram of QCD. Cf., for instance, http://physics.aps.org/articles/v2/5 for an introduction to (some of) the issues.
One of the possible indication of existence of a mixed phase is the fact that not all particles seem to have the same parameters obtained from the Blast Wave fit, especially the strange baryons. This points to the time differences in particles decoupling from the quark gluon plasma which imples existence of a mixed phase.
As gluons are engaged a mixed state becomes unavoidable. This can be seen in the revisiting of the standard gluon coupling. One only requires a single gluon selfstate if the 8 permutation states are denoted as B(lack) for the pure matter hyperon BBB (as E=mc^2) and as pure radiative W(hite) WWW (as E=hf) with intermediate states BBW, BWB, WBB, BWW, WBW, WWB with the meson states BB, BW, WB and WW correspondingly.
Of course this necessitates the RGB gluon state say to become partitioned as R+G=Y(ellow) as the YB rerepresentation of the triplet antitriplets of the chroma classifications.
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