Fiesta sells wel in Europe, so I expect the new model to be more evolutionary.
yes and no -- it may be evolutionary until they go all new on the platform and decide to change things. But Ford has been pushing the 2 top-hat generations per platform schedule, and we currently have a post-MCE 1st top hat on the current platform. So I am also expecting the same proportions to remain.
Size is a big deal there also, which means it can't really get much bigger, and still meet the sub-compact needs in it's largest markets. Light weighting will be the big deal here. So expect the new/revised/repurposed platform it uses to be lighter weight, with more use of aluminum.
Looking at the EcoSport, I expect it to remain much as it is, but with the Escape growing a bit in size, the current platform could be used for a more NA specific (EcoSport like) vehicle below the new larger, more grown up Escape.
Which could look something like this:
- New Fiesta keeps current platform with updates/light weighting
- EcoSport(needs new name for NA) for NA market uses smaller version of current Escape/Focus platform with modifications
- New Escape gets new larger/lighter platform shared with New Focus and new C-Segment Lincoln.
Fiesta is currently on its own platform, and EcoSport and B-Max are is tall-bodied Fiestas. My point is not that ecoSport will change architecture, but that Ford will pursue different proportions when EcoSport goes NG in a few years, going for a lower, hatchback-like look, rather than the current very-tall profile.
Focus' C1/C2 platform is directly used under the Escape and that will not change.
The C1/C2 also is the core of EUCD/CD4 (Fusion, Mondeo, Edge, MKX, Galaxy, S-Max).
I expected the NG C Platform debuting under the next Focus to serve the same role for all FWD/AWD Fords, and spawn the NG CD platform, but the existence of CD6 mixes things up a little bit.
With CD6 on the horizon, we may see CD6 exist separate from the NG C-platform. If this is the case, maybe Ford will make the C platform the base of the NG B platform as well: make it smaller, lighter, and cheaper, and off you go. The relation from Fiesta -> EcoSport and Focus -> Escape will 95% remain unchanged, regardless.
Despite all this speculation, I am 95% certain that the NG Fiesta will be just a new top-hat on a refresh of the current platform.