I'm bored so why not predict who could be on these banners, starting with Swift Sparrow:

• Ayra - Last banner was Combat Boosts with Brave Lyn and Sonya, so she could appear but Eirika may have a better chance.
• Eirika(SM) - Eirika has not appeared on a regular banner at all since she debut with Sacred Memories in January. She has a strong chance.
• Katarina - Has a chance on the Ploy banner, so if she does not have a place there, then its very likely she will appear here.
• Ishtar - Ishtar is due to appear on a BHB banner around the same time as this one, meaning she could be skipped.
• Lyn(BH) - I feel like this may be an obvious choice.
• Olwen(WT) - Olwen's last banner was the Healing Skills banner, so I doubt she will return on this.
• Nino(SF) - Nino has not appeared since she debut on Scattered Fangs, making her a very likely candidate.
• Lewyn - Possibly a tad bit too early for him to appear, it also means colour sharing possibly which no one likes.

Ploy Banner

• Katarina - Atk Ploy, she last appeared on a New Power banner. If she doesn't appear on Swift Sparrow, she could appear here.
• F!Morgan - Atk Ploy. She last appeared on a Stance Banner along with Shiro and Zelgius.
• Deirdre - Spd Ploy. The only summonable source of Spd Ploy, Deirdre has a very good chance of appearing.
• There is currently no source of Def Ploy that is summonable
• Sonya - Res Ploy. Last banner was Combat Boosts. If Deirdre makes an appearence, then I doubt Sonya would since she is the onyl source of Spd Ploy while Lute also has Res Ploy like Sonya.
• Lute - Res Ploy. Lute has actually only been on 1 regular banner, being Farfetch'd Heroes, nearly a year ago. She has been on 1 Legendary Banner but that is it.
• Zelgius - Panic Ploy. We all know him by now,
• LUKE - Panic Ploy. The Luke has a chance to shine! He hasn't been on a banner since his release LAST JUNE. Its a good shot for him.

TLDR:

• Swift Sparrow - Eirika(SM), Nino(SF) and Lyn(BH)
• Ploy - Katarina, Deirdre and Lute realistically, however Luke or Zelgius could take a spot if any of these don't appear.