EI lounges are rather poor at the best of times. There are only a few routes left that offer J service, and even that is a discounted J (competing on a fare that is roughly half of AA/BA). The J lounges exist at most of the airports which still operate J flights, e.g. DUB, BOS, JFK. The prefered solution at LHR is to use the BA J lounge in T1 which is much nicer than the EI lounge, you can do that if you are OW Sapphire but EI does not pay for lounge access at LHR for anyone based on the ticket. This changed circa April 2005 when EI became a mostly LCC (Ryanair being based in DUB had something to do with it).