Three scenario polls were conducted by Panels that were published by Maariv on Jan 22 2016.
Scenario Poll #1: If Ashkenazi led Zionist Union
Current Knesset seats in [brackets]
28 [30] Likud
17 [24] Zionist Union led by Ashkenazi
17 [11] Yesh Atid
13 [08] Bayit Yehudi
12 [13] The Joint (Arab) List
07 [10] Kulanu
07 [07] Shas
07 [06] Yisrael Beitenu
07 [06] Yahadut Hatorah/UTJ
05 [05] Meretz
69 [67] Right-Religious
51 [53] Center-Left-Arab
Scenario Poll #2: If Ashkenazi is #2 in Yesh Atid
Current Knesset seats in [brackets]
27 [30] Likud
19 [11] Yesh Atid led by Lapid & Ashkenazi
18 [24] Zionist Union led by Herzog & Livni
13 [08] Bayit Yehudi
12 [13] The Joint (Arab) List
07 [07] Shas
07 [06] Yisrael Beitenu
07 [06] Yahadut Hatorah/UTJ
05 [10] Kulanu
05 [05] Meretz
66 [67] Right-Religious
54 [53] Center-Left-Arab
Scenario Poll #3: Merger of Kulanu, Ashkenazi and Saar into one party
Current Knesset seats in [brackets]
26 [30] Likud
18 [24] Zionist Union
15 [11] Yesh Atid
13 [08] Bayit Yehudi
12 [13] The Joint (Arab) List
11 [10] New Kulanu-Ashkenazi-Saar Party
07 [07] Shas
07 [06] Yisrael Beitenu
07 [06] Yahadut Hatorah/UTJ
04 [05] Meretz
Jeremy's Knesset Insider 
There’s already too many Ashkenazim to have 3 scenarios more. On 24 Jan 2016 5:15 pm, “Jeremys Knesset Insider” wrote:
> Knesset Jeremy posted: “Three scenario polls were conducted by Panels that > were published by Maariv on Jan 22 2016. Scenario Poll #1: If Ashkenazi led > Zionist Union Current Knesset seats in [brackets] 28 [30] Likud 17 [24] > Zionist Union led by Ashkenazi 17 [11] Yesh Atid 1” >
It is curious that ZU gets more MK´s (+1) in scenario Poll #2 (led by Herzog & Livni) than in scenario Poll #1 (led by Ashkenazi), but YA also gets more MK´s (+2) in scenario Poll #2 (led by Lapid & Ashkenazi).
In other words, Ashkenazi is not the game-changer for the center/left some were hoping. In fact, he seems irrelevant except for the final scenario where he would join with a very hypothetical and ostensibly center-right party. And that Kulanu-Sa’ar-Ashkenazi party isn’t going to happen anyway.