Heroes 5.5 WarGame Edition - Tactical Edition.

Will there be specialization portraits for Orlando and Guard?
As I understand it, "Additional Creatures" are specializations from 5.5

Added 5 minutes later
The Vaishan portrait is best suited for the assassin's attack.

1) I don't understand what portraits you mean. These are standard specializations, just on different heroes (a reshuffle).

2) Additional creatures mean that every day/level up, additional creatures of that tier are added to the hero. This is similar to the standard specializations that affect creature stats (in both cases, it increases the power of the unit), but only through the number of creatures.

3) The "Scouting" ability (and the subsequent "Camouflage") allows you to steal artifacts from the map (a ritual), acting similarly to stealth in Heroes 4. This is more suitable for rogues than lizards. At the same time, Sorgall is also a representative of the "Assassin" class, and the specialization (in addition to additional lizards) enhances their bite, an ability similar to "Assassin's Mark." The bite triggers when allied creatures attack the target, distracting it (punishing the lizards). And the Assassin's Mark (sign of the cursed) triggers when the target is distracted by performing some active action (punishing the hero).