It is a bit early but it makes sense to come up with some initial projections of how the legislative races will look like and comparison to 2016 (note there were some redistricting since 2016)
2020 2016
District KMT DPP KMT DPP pro-DPP NPP
Taipei City (臺北市) 7 1 5 2 1
New Taipei City (新北市) 7 5 2 9 1
Keelong City (基隆市) 1 0 0 1
Taoyuan City (桃園市) 5 1 2 3 1
Hsinchu City(新竹市) 1 0 0 1
Hsinchu County (新竹縣) 2 0 1 0 (Gained a seat)
Maioli County (苗栗縣) 2 0 2 0
Taichung City(臺中市) 5 3 3 4 1
Nanto County(南投縣) 2 0 2 0
Changhua County(彰化縣) 2 2 1 3
Yunlin County(雲林縣) 0 2 0 2
Jiayi City(嘉義市) 0 1 0 1
Jaiyi County(嘉義縣) 0 2 0 2
Tainan City (臺南市) 0 6 0 5 (Gained a seat)
Kaoshiung City (高雄市) 0 8 0 9 (Lost a seat)
Pingdong County(屏東縣) 0 2 0 3 (Lost a seat)
Yilan County(宜蘭縣) 0 1 0 1
Hualian County(花蓮縣) 1 0 0 1
Taidong County(臺東縣) 0 1 0 1
Penghu County(澎湖縣) 0 1 0 1
Kinmen County(金門縣) 1 0 1 0
Lienchiang County(連江縣) 1 0 1 0
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37 36 20 49 1 3
Doing well in New Taipei City (新北市), Taoyuan City (桃園市) and Taichung City(臺中市) will decisive for KMT to win a majority.
2016 and 2020 will be same in terms of Aborigine seats
Plains Aborigine: KMT 2 DPP 1
Mountain Aborigine : KMT2 NPB 1
PR KMT PFP TPP DPP NPP
2016 11 3 18 2
2020 17 3 12 2
So 2016 vs 2020 will be
2016 2020
Pan-Blues KMT 35 PFP 3 NPB 1 = 39 KMT 58 NPB 1 = 59
Pan-Greens DPP 68 NPP 5 Ind 1 = 74 DPP 49 NPP 2= 51
TPP TPP 3
This is assuming that TPP loses ground due to Guo not running and giving the DPP the benefit of the doubt in many tossup districts. The downside is greater for the DPP. I can see DPP easily losing 3-5 district seats on top of my projections. Overall it gives the KMT is very small majority.
Would NPP even make the 5% threshold?
NPP only won 6.11% in 2016, so any big drop in support would put them below the threshold.