no.
faction limit 31
edit: vannila has 22, but that includes normans and saxons. you scrap normans,saxons,timurids,mongols and you have 18 - you can even keep the aztecs!

tatw has 12
18+12 = 30. no more faction merging needed
7 culture slots -> middle earth men, elves, dwarves, orcs, evil men, european men, islamic men
10 religion slots -> all religions - catholic,orthodox,islam,followers of melkor, dunedain, northmen,elves, dwarves
region limit 199, here you will have to scrap/merge some regions
vannila has 111(including americas), tatw has 114
111 + 114 = 225, you'll have to scrap 26