It would be very helpful (especially to new players) to be able to know what will be in LOS before moving the hero.
A highlight on the tiles that would be in LOS if the hero is placed at the location he's being holded (but not released) would be perfect.
A discussion was started here - https://discord.com/channels/821656121059573790/1160972041827127437/1189044011206463519, see the next comments as well.