Midgam conducted a poll of 500 people that was broadcast by Channel 2 on Jan 5 2014.
Additionally, a scenario poll was taken showing a new Moshe Kachalon led party.
Current Knesset seats in [brackets]
33 [31] Likud Beitenu
16 [15] Labor
14 [19] Yesh Atid
11 [12] Bayit Yehudi
10 [11] Shas
07 [07] Yahadut Hatorah/UTJ
07 [06] Meretz
07 [06] Movement
04 [04] Hadash
04 [04] Ra’am-Ta’al
03 [03] Balad
02 [02] Kadima
02 [–] Strong Israel
63 [61] Right-Religious
57 [59] Center-Left-Arab
Knesset Jeremy Analysis: The poll found that a party led by Moshe Kachlon would win 10 seats and twice as many Shas voters prefer Yishai over Deri as party leader. Likud Beitenu remains in lead, Labor still a distant second place.
Other questions:
Are you satisfied with current government? No 65%, Yes 27%
Who is most fit to serve as Prime Minister? Netanyahu 30%, Herzog 11%, Livni 7%, Bennett 6%, Liberman 6%, Lapid 5%
Among Shas voters, who should lead Shas? Yishai 50%, Deri 25%
Scenario Poll Results: Results were only shown of top six parties, it is unclear how it effects block situation.
Current Knesset seats in [brackets]
30 [31] Likud Beitenu
16 [15] Labor
12 [19] Yesh Atid
10 [12] Bayit Yehudi
10 [–] New Kachalon Party
09 [11] Shas
Jeremy's Knesset Insider 
What was the breakdown if Kachlon gets 10 seats? Who does he take away from?
going to post an update with those numbers soon.
So three from Likud, two from Lapid, and one each from BY and Shas- that’s only 7.
Where’s the rest from?
good question
Good question!
This of course raises the question to where one could find Kachlon on the political map. With left-wing, center, moderate right-wing (pro-2-states) or conservative right-wing? In what “real” bloc to include him? Right-religious with conservative Likud people that he do not like or?
Kachlon is economically left and right on defense-diplomatic issues. Hard to “block” him, but I’d put him with right because he prefers BB as Prime Minister.