According to another website, the A343 that is coming will be the one currently operated by Etihad. Not sure what config it will be in though for LGW or what entertainment it will have onboard when it joins VS.
The A343's currently have the Odyssey system installed which is tape based but G-VSUN is due for a re-fit this year to install UCS/PE/Econ seats and rumour says it will be having V
ort installed at the same time too.