Elena v Francesca could be a marathon of sprinting. Biggest challenge Elena has had yet.
Some up and coming players find a top player they can beat and build a habit from which they go on to beat other top players. (look at Huber and Martinez for a classic example)
Francesca has been flirting with beating a top 5 player all year and Elena might be interesting.
Vera might find Amelie interesting too. Wouldn't bet who has the most potential there.
Elena B is due a good run?