I went through the same thing with my TT several years ago. The short answer is probably yes, your stabilizer jacks will may hold the camper up. I would put blocks under the tongue to support it simply because things can go wrong! Unless you have the new jack already on site, and you know it is absolutely the correct fit, I would be prepared for the unknown and support the tongue with some solid blocking to be sure.
2020 Eagle HT 30.5 CKTS Modern Farmhouse (16" wheels, spring shackles set on lower hole of frame, SumoSprings TSS-107-40, standard kingpin, B&W Companion slider, TST-507 TPMS, Progressive Industries hardwired 50A EMS HW-50C)
2019 F250 SRW SuperCab 4X4 SB 6.2 (10,000# GVW) 3.73 Axle 18" wheels