>>958 Allow a little laugh first at TH's fans fretting over TS presence in London. She dumped him, but they worry she is stalking him! lol

I think TH's fanatics are, as usual, making a lot of assumptions.

Back in January it was announced that IW would also be filming in Scotland, Glasgow&Edinburgh, for 6 months. So 6 months is the duration of the filming.
This Scotland leg seems to be mostly centred on Peter Dinklage's character and his homeworld, supported by the fact that they have been doing casting call for little people. This character is connected to Thor - the dwarf king made Thor's Mjolnir - based on a concept art for IW where Thor is wielding another weapon, which means that Hemsworth will probably show up in Scotland.

http://screenrant.com/avengers-infinity-war-scotland-six-months/

You can see why TH's fans would think his presence is probable, but in reality it's impossible to say.
TH made a big thing of his sabbatical and how there are more important things in life. Now, filming a cameo wouldn't really contradict that, but a shooting longer than 3/4 weeks would. I also don't see how Marvel would be able to keep his presence a secret.