So im behind the times are they ditching the 1.9 diesel for a 2.0 diesel?
No the 2.0 diesel appears to be an addition. The 1.9 continues in some markets in 120 and 150 hp versions, and the range of diesels shapes up as follows
2.4 JTDm 200hp Q-Tronic only?
2.0 JTDm 170hp Euro 5 149 g/km emissions 6 speed manual
2.0 JTDm 170hp Euro 5 ECO version - 5% higher geared. Low rolling resistance tyres. Thinner oils. New power steering pump. 136 g/km emissions 6 speed manual
1.9 JTDm 150 hp Euro 4 6 speed manual or Q-Tronic
1.9 JTDm 120 hp Euro 4 6 speed manual
1.9 JTDm 120 hp Euro 4 ECO 6 speed manual
Then the petrols
1.8 MPi 140 hp 5 speed manual only
2.2 JTS 185hp 6 speed Selespeed only?
1750TBi 200hp Euro 5 6 speed manual
3.2 JTS 260hp Q4, Q-Tronic only?
Those seem to be the only options listed on the AlfaRomeo.com site
Presumably not every market will be offered the full range of engines and transmissions and some of the older engines may be phased out depending on demand.