FF Dimensions for iPhone was a more modern take on FF5. In FFD, RDM learned up to level 2 magic, but also learned Spellsword at a high job level. Those spells were like Drain Sword, Stone Sword, Aspir Blade etc. So if RDM had Sword Magic in FFXI and FFD, it's not too huge of a stretch for RDM to have it if they appear in FFXIV. So if BLM/SCH/SMN/ARC/BRD/MCH are ranged jobs that have cast bars for their GCD, maybe RDM will be a close range job with cast bars on their GCD, and they'd have rotations. Honestly if SAM is DPS, I can see RDM being a tank, because they could have Aspir Blade (Siphon Strike/Riot Blade), Drain Blade (Inner Beast/Souleater), Flat Blade (Leg sweep, Shield Bash), Cura (Clemency), Thundara (Unmend/Shield Lob/Tomahawk), Fira (Flash/Unleash), Blizzara (Soiled Earth), Wall (Rampart), Phalanx (Sentinel), and Riposte/Reflex (Reprisal). DPS rotation could be elemental sword hits. Or they could have Spellblade stances that give them various effects like NIN;s poisons that alter the secondary effects of their oGCDs. Like turn Enthunder on to give Riposte a stun effect, or with Enfire, Riposte adds a DoT. I just don't see them adding 2 DPS jobs in 4.0 and SAM I doubt would be a tank because they would look dumb in heavy plate armor. SAM would likely share Maiming gear with DRG because it's medium weight.