There are currently no Class 158 units in store at Eastleigh , but there are 4 Class 153 units , these are as follows :
153302
153308
153355
153374
According to Andrew Griffiths , FGW▸ 's Regional Manager for the Severn/Solent area , these will be heading for the East Midlands Franchise.
Apparently , the Class 153 units are due to be moved next weekend , and will work Lincolnshire , Robin Hood line and Notts / Derby - Crewe services.
Thats just a rumour though , so dont hold me to it....