A320 to LCA? This is from LGW, right? If so, unless you're on G-TTOB/OE, and whatever non-refurbished LHR aircraft is operating out of LGW, get the exit row. The front row of ET does not become a 2-seater on most LGW Airbus aircraft. Basically, it's a big mix and you'll only be more sure, but not certain, a few days out.