Thanks for the reply Busz/Alex I noticed that these wing tips also have very unique wing strobe lights where instead of flashing or strobing as per normal these are like turning bright LED lights and seem to stay on longer than other 737NG or A320.
I have noticed in particular at EGNX they seem to use the new Scimitar aircraft on the longer sector flights like PFO,LCA,DLM,AYT and SSH I imagine this is to maximise the fuel savings just a shame these aircraft are all older and have not got the Sky interior and maps for customers.