I have looked into the crystal ball. I see 50 new Norwegian breweries in 2015.
There are around 120 active breweries in Norway today, I guess about 20 of them established during 2014. But things are not slowing down. My guess there will be 50 new breweries with a public licence to sell their beers in 2015.
I have gone through public records, newspaper clipping, Facebook pages etc. Here are 38 new breweries who are likely to start brewing in 2015, listed by county. As usual, they are scattered around the country, most of them starting up as very small scale brewpub ventures. I welcome all corrections to the list, and hope there is a fair number of omissions, too..
Some of these have a local licence to sell beer in-house only, others have a national permit and may sell their beers through shops, bars and restaurants. Note that there are a few destilleries starting up, too, they are not included, neither are cider makers. Nedre Foss Gård in Oslo will , as far as I know, have both a brewery and a distillery.

Daglighallen Mikrobryggeri in Trondheim. Already open!
Akershus
Ale by Alex, Fet
Wettre Bryggeri, Asker
Buskerud
Aja Bryggeri, Tranby
Eiker Ølfabrikk, Mjøndalen
Skjenkestua pub Drammen
Svensefjøset, Lier
Nøsterud Gård, Svelvik
Låven Mikrobryggeri, Sylling
Hedmark
Kolonihagen, Hamar
Ølkjillarn, Folldal
Hordaland
Inside Voss Rock Cafe, Voss
Bergen Mikrobryggeri/Fribryggerlogen
Nøsteboden, Bergen
Modalen Ølbryggjarlag anno 2014, Modalen
Møre og Romsdal
Korn Bryggeri, Eresfjord, Nesset kommune
Bjørkavåg Brygg, Fiskarstrand,
Smøla Mikrobryggeri, Smøla
Nordland
Mormors Hus, Bøstad, Vestvågøy
Nord-Trøndelag
Eldhuset, Haugum Gård, Overhalla
Berg Gård, Inderøy kommune
Winkelmann Bryggeri, Hegra
Oppland
Villtotningen, Kolbu
Sve Gard, Vågå kommune
Oslo
Nedre Foss gård, . ”Bellonahuset”
St. Hallvard
Sogn og Fjordane
Tya Bryggeri, Øvre Årdal
Sør-Trøndelag
Moe Nedre, Leinstrand, Trondheim
Kystbryggeriet Frøya, Dyrvik
Troms
Senja Handbryggeri
Stangnes bryggeri Tranøy
Vest-Agder
Hunsfos Bryggeri, Vennesla kommune
Farsund Brewing Company, Farsund
Bryggerhuset (Bekkereinan), Kvinesdal
Østfold
MikroMeyer, Spydeberg
Mølla Brygghus, Fredrikstad
Taraldrud gård, Marker kommune
Svalbard
Svalbard Bryggeri, Longyearbyen
Trappers Brewhouse, Longyearbyen