What better time!... but this would be very interesting to try and read; using 2011 federal figures both would go NPDQ correct? in Particular Saint-Henri--Sainte-Anne looks to be a good fit for the NDP, QS tends to poll over 10% and they would not be the happiest with a NPDQ running. I'm actually really hopeful that they do run candidates!
Transposing the results of the 2011 Federal Election onto the 125 Quebec provincial ridings gives this result:
NDP 101
Lib 10
Cons 8
BQ 6
Fabre would be the NDP's 5th best seat: NDP 51% LIB 18% BQ 16% CONS 12% GRN 2%
Saint-Henri--Sainte-Anne would be the NDP's 18th best seat: NDP 46% BQ 22% LIB 20% CONS 8% GRN 3%