No plans for 6 car 323s on the route, 6 car 331s can already stop using SDO/ASDO. These only run on Sundays and will be replaced with 4 car 331s from December. Lea Green (and Newton le Willows) extensions part of transpennine upgrade. No funded plans for lengthening at Broad Green.
Reduction in capacity with four car Class 331/1's (were previously it was six car Class 331/0's) being used and still on an hourly service too! Strangely the best service has always been on 'strike' days, always six car Class 331/0's as you got a good chance on getting on board - may be more strike days required!
As for platform lengthening, it is just not Broadgreen, also would need Wavertree Tech Park, Roby, Huyton, Whiston, with possible Rainhill, St Helens Junction and Earlestown. The latter three I think it is close fit for a six car unit? Another member may be able to add clarity on those three?
I must admit until 'Childwall Blues' mentioned it, I have travelled pass Broadgreen Station over the last few months and it looks always the same, certainly nothing appearing above the fence boards on both platforms. So is there anything getting done?