Sorta looks like Saska...

It does, but my impression is that Saska is not someone who could remotely be called a diplomat.

It seems a stretch. Are there some minor resemblances, maybe, but the characters look distinct. Art styles notwithstanding.

Could be. Especially seeing as the upcoming IA Alliance Smuggler is most certainly using the identical artwork of PASH from the Edge of the Empire RPG.

I got quite excited when I saw the Alliance Smuggler because I really would like some character cross-over within the different FFG Star Wars games not least because I would like to use the miniatures in the RPG rather than the tokens.

I suppose it remains to be seen whether these character similarities happen consistently or whether they happen willy-nilly. The Engineer TENDAAR from Age of Rebellion RPG could use the LOKU KANOLOA figure from the forthcoming Return to Hoth expansion.

Probably not. Seska is what the army would likely call a Combat Engineer. The analyst is more along the lines of a CIA Spook sitting at a desk and, brace yourself, analyzing situations, troop movements, the economy on some planet to see how a speech given by a diplomat might be viewed, etc..