I don't know when sunab last updated his bleeding edge PPA. To me it seems a long time ago. So I thought I would share:
Sunabs bleeding edge PPA (personal package archive) at
https://launchpad.net/~sunab/+archive/kdenlive-svn
now has

frei0r 1.4.0+git20131020.10d8360f
melt 0.9.1+git20131231.a615b9e1
kdenlive 0.9.7+git20131231.f4462e7e

Bonjour,
pourriez-vous me dire si il y aura une version de Kdenlive 0.9.7 dans les Macports prochainement
merci

Hello,
could you tell me if there will be a version of Kdenlive 0.9.7 in Macports soon
thank you

The 0.9.7 version is an unstable release. I don't think unstable releases get put into macports. You probably need to wait until the next stable release ( 0.9.8 probably)