s4 5v5, when to start..?

Hi guys, i have been w8ing for s4 for the last 4 weeks of having a 70 team of shammy to gear them up.. and now the day is here.. But i was woundering. And want someone eles oppionins on this.

Playing to day... what will happen... Will it be so many teams that i can win then easily as they have never faced a boxer before and not really know whats going on.. or will there be so many of the s3 high rated team that are rating back up again playin that will basicly crush me on their way...

What do you guys say.. Even with s4 out i wont have imba gearing.. i will get 1/5 of the set and some of the honor items.. rest wil still be epics from heroics or the blue pvp set.

Give me you oppinions :D

This is allready beeing discussed in this thread :

S4 Launch, when to start playing arena?

But I guess the PvP forum is more approporate :) Maybe a moderator should move the thread.