Would there be synergy between the Flame Blade and either of Green-Flame Blade or Elemental Weapon?

@JeremyECrawford @mikemearlswould there be synergy between the Flame Blade spell and either of Green-Flame Blade or Elemental Weapon? any ideas?

— Chris (@Chrisjcxa) October 15, 2016

@Chrisjcxa @JeremyECrawford don't believe so – the spell is not a weapon #wotcstaff

— (((Mike Mearls))) (@mikemearls) October 15, 2016