Dual fleet may have some merits. If going 5th and 6th gen. But we're replacing a 4th gen fleet with a fleet of 4.5 Gen (at best) and 5th Gen. We're going to do this in the 2030s as the major powers are starting to field 6th gen and proliferate 5th Gen platforms everywhere. See Trump selling F-35s to Saudi. Putin selling Su-57s to Algeria. And China selling J-35s to Pakistan.
We're also doing this right as autonomy is taking off and forces like the USAF plan to have 3 CCAs for every manned jet. So we're going to fly Gripens to do things that others will use CCAs and drones for. And we're doing to do this into the 2050s. At least.
All this for jobs. But even in Brazil, Saab themselves (on their website) say that their assembly plant has 200 jobs:
Gavião Peixoto (SP) The production line for the F-39 Gripen E was inaugurated in Brazil on May 9, 2023. This marks another historic milestone in the F-39 Gripen program, establishing the first production line for the fighter outside of Sweden.
www.saab.com