It could be let into the game but is it balanced???
I would personally drop all of the virtual feats for a bonus feat sceem (with a limited list of Bonus feats potential) like the Ranger I would suggest that they are allowed the use of the virtual feats [ambedexterity, two weapon fighting] when wearing light or no armor.
Hit points seem ok at a D8 but I would prefer for my Campaign D6
With a Good Fort, and Ref Save
The Alignment regulation Any non lawful seems a bit wierd because while I can think of some strangely debutante swashbucklers I can not for the life of me think of a reason why one could not be lawful, indeed while perhaps more LN Athos, or Aramis from the Musketeers make good examples of lawful swashbucklers
Sounds good though since its not listed
I would suggest
Skill Points at First Level (6+ Int Modifier) x4
Skill Points at each addition level 6 + Int Modifier
Appraise (Int), Balance (Dex), Bluff (Cha), Escape Artist (Dex), Gather Information (Cha), Innuendo (Wis), Jump (Str), Listen (Wis), Perform (Cha), Read Lips (Int), Sense Motive (Wis), Spot (Wis), Tumble (Dex)
In additon I would Add
Climb (Str), Intuit Direction ( Wis) Diplomacy (Cha), Handle Animal (Cha), as well as the Variations of Bluff (Seduction, and Gambling)
(Seduction (Cha) Gambling (Wis) ) Urban Lore ( the Urban variation of the Wilderness Lore Skill from FFG's Traps & Treachery I* ) Ride ( Dex), Swim (Str)
* If you want the rules part of this skill let me know
As for replacing the lost feats -turned to bonus feats I would have it look something like the following
1st------ Canny Defense, Bonus Feat
2nd----- Bonus Feat
3rd------
4th------ Precise Strike (+1d6)
5th------ Bonus Feat, Weapons Specialization
6th------ Weapons Style*
7th------
8th------ Bonus Feat
9th------ Precise Strike (+2d6)
10th-----
11th-----Weapons Style*, Bonus Feat
12th
13th------ Enhanced Mobility
14th------ Precise Strike (+3d6), Bonus Feat
15th
16th----- Greater Weapons Style**
17th----- Bonus Feat
18th
19th------ Precise Strike (+4d6)
20th------ Greater Weapons Style**, Bonus Feat
* Elaborate Perry, Mongoose Grace, and Grace fall under Weapons Styles that he is able to to select 1 of if he meets each prereq which should have something to do with Dex
** Greater Weapons Styles are Acrobatic Attack, Nettles in the Wind, and Improved Reaction though as with Weapons styles more can be added (much like alt bard abilities)