So I did some console command exploring with the new update and here are the commands I found so far to spawn the new items npcs and more: (where N the number you want of said item)
New NPCs:
Boar: spawnnpc boar
Polar Bear: spawnpc polarbear
Deer: spawnpc deer
Rat: spawnpc rat
Dungeon/Shack Items:
Normal Bone: item bone N
Bone Chest: item chest N
Bone Skull: item skull N
Old Piano with ivy: object pianoold 0
Old Piano: object pianoold 1
Old Table with ivy: object tableold 0
Old Table broken: object tableold 1
Old Shelf with ivy: object shelfold 0
Old Shelf: object shelfold 1
Iron Maiden: object ironmaiden 0 spawns an iron maiden with id 0
object ironmaiden 1 spawns an iron maiden with id -1 with no obvious difference to the id 0 one
Torture Rack: object torturerack 0 spawns a torture rack with id 0
object torturerack 1 spawns a torture rack with id -1 with no obvious difference to the id 0 one
Judas Cradle: object judascradle 0 spawns a judas cradle with id 0
object judascradle 1 spawns a judas cradle with id -1 with no obvious difference to the id 0 one
Bone Throne: object bonethrone 0 spawns a bone throne with id 0
object bonethrone 1 spawns a bone throne with id -1 with no obvious difference to the id 0 one
Bone Torch: object bonetorch 0 spawns a bone torch with id 0
object bonetorch 1 spawns a bone torch with id -1 with no obvious difference to the id 0 one
Bone Statue: object bonestatue 0 spawns a bone statue with id 0
object bonestatue 1 spawns a bone statue with id -1 with no obvious difference to the id 0 one
Skull Candle: object skullcandle 0 spawns a skull candle with id 0
object skullcandle 1 spawns a skull candle with id -1 with no obvious difference to the id 0 one
Torture Cage: object torturecage 0 spawns a torture cage with id 0
object torturecage 1 spawns a torture cage with id -1 with no obvious difference to the id 0 one`
Torture Cage: object torturecageceiling 0 spawns a ceiling torture cage with id 0
object torturecageceiling 1 spawns a ceiling torture cage with id -1 with no obvious difference to the id 0 one`
cobwebs:
object cobweb_cocoon1
object cobweb_corner_b
object cobweb_corner_u
object cobweb_u
object cobweb_door1
traps:
Spikes 1x1: object spikes 0
Spikes 2x2: object spikes 1
Spike Trap: object trapspikes 0 spawns a spike trap with id 0
object trapspikes 1 spawns a spike trap with id -1 with no obvious difference to the id 0 one`
Weak Ground 4x4: object weakground
Records & Gramophone:
item record N 0 Richard Wagner "Ride of the Valkyries"
item record N 1 Gioachino Rossini "William Tell Overture"
item record N 2 Johann Sebastian Bach "Toccata and Fugue A"
item record N 3 Johann Sebastian Bach "Toccata and Fugue B"
item record N 4 Ludwig van Beethoven "5th Symphony, 1st Movement, Allegro con brio A"
item record N 5 Ludwig van Beethoven "5th Symphony, 1st Movement, Allegro con brio B"
item record N 6 Edvard Grieg "Morning Mood"
item record N 7 Edvard Grieg "Death of Ase"
item record N 8 Pjotr Iljitsch Tchaikowsky "Swan Lake Act 2 - Allegro moderato"
item record N 9 Pjotr Iljitsch Tchaikowsky "Swan Lake Act 3 - Hungarian Dance"
Gramophone: object gramophone 0 spawns a gramophone with id 0
object gramophone 1 spawns a gramophone with id -1 with no obvious difference to the id 0 one
Other Items:
Bear Pelt: item bearpelt N
Polar Bear Pelt: item polarbearpelt N
Deer Pelt: item deerpelt N
Moose Pelt: item moosepelt N
Goat Pelt: item goatpelt N
Fox Pelt: item foxpelt N
Sheep Pelt: item sheeppelt N
Boar Hide: item boarhide N
Cow Hide: item cowhide N
Pig Hide: item pighide N
Bear Skin Rug: object bearskinrug
mattress: object mattress
If anyone has found anything else to add to the list feel free to post below and I will edit my post to include your findings 
