Since the action economy makes any character a potential gish, that's fine, but also means that the magus/spellblade is not gonna be a priority when the rulebook is finnally released.
There are multiple ways to make a suitable magus/spellblade, this is my attempt on bring the class to the playtest:
Ancestry: Human
Background: Warrior
Class: Sorcerer -> Bloodline: Imperial
ABILITY SCORES
STR 16 (+3)
CON 12 (+1)
DEX 14 (+2)
WIS 10 (0)
INT 10 (0)
CHA 14 (+2)
FEATS
General Training (Ancestry Feat)
Weapon Proficiency (General Training, taken from de ancestry feat)
Quick Repair (Skill Feat)
SPELLS
Daze (Cantrip)
Detect Magic (Cantrip)
Electric Arc (Cantrip)
Fear (1st lvl)
Light (Cantrip)
Mage Armor (1st lvl)
Mage Weapon (1st lvl)
Shield (Cantrip)
Bloodline Power: Ancestral Surge