i see the point of allowing onward travel to the US but i dint think this will happen until EI Regional can merge its operations into T2 or at least Pier B.
Pier E can't cope with US aircraft and EI in the mornings and EI in the evenings. Add EI regional to the mix and it would make things worse. Pier B is not suitable for EI regional and most other carriers in T1 operate from it as well as EI.