Given the Taiping leadership was something of a basket case (see the Tianjing incident, a fiasco where 3 of the Taiping kings and tens of thousands of their followers ended up dead, and contributed to Shi Dakai's eventual decision to go his own way; later on there were fractions between Hong Rengan and Li Xiucheng), I personally doubt it'll hold together in any meaningful sense after the death of Hong Xiuquan (yes, he spent his time in seclusion writing poetry and beating his wives, but he at least provided notional leadership). You'd have Taiping leaders doing their own thing (warlordism, basically) with the more loyal ones competing for the regency of or influence with Hong Tianguifu (who was noted to be useless IOTL, though to be fair he was only 14 when he died).
At best you'd have Hong Rengan governing Nanjing on behalf of Tianguifu whilst more peripheral leaders pay lip service to the capital but do as they please.
And given the highly unstable edifice the Taiping regime was built on, Hong Rengan will need to pull off a miracle to give it any permanence- they'd alienated the gentry with their proposed land reforms, the peasants with their hostility to traditional Chinese religion, and the West with their unorthodox interpretation of Christianity. All they had were a core of true believers and a mass of freebooters along for the ride.
As for the rest, I'd imagine an increased sphere of western influence on the coast, centred on the treaty ports. European powers would then probably scheme to prop up friendly warlords in the hinterland ("friendly" both as in amenable to western influence generally, and as in favouring interests of X European nation over Y). I'm not sure any of them have the appetite or the troops necessary for imposing more direct control over the inland areas, though Russia might continue nibbling away at the periphery.
Can't really say much about the others. The Panthay Rebellion obviously established the Pingnan Guo ('Pacified Southern State') under Sultan Suleyman/Du Wenxiu in the 1860s. Any chance Yaqub Beg can consolidate Kashgaria with no Qing to push back?
I'd imagine both are in for some major turbulence after their founders die.
At best you'd have Hong Rengan governing Nanjing on behalf of Tianguifu whilst more peripheral leaders pay lip service to the capital but do as they please.
And given the highly unstable edifice the Taiping regime was built on, Hong Rengan will need to pull off a miracle to give it any permanence- they'd alienated the gentry with their proposed land reforms, the peasants with their hostility to traditional Chinese religion, and the West with their unorthodox interpretation of Christianity. All they had were a core of true believers and a mass of freebooters along for the ride.
As for the rest, I'd imagine an increased sphere of western influence on the coast, centred on the treaty ports. European powers would then probably scheme to prop up friendly warlords in the hinterland ("friendly" both as in amenable to western influence generally, and as in favouring interests of X European nation over Y). I'm not sure any of them have the appetite or the troops necessary for imposing more direct control over the inland areas, though Russia might continue nibbling away at the periphery.
Can't really say much about the others. The Panthay Rebellion obviously established the Pingnan Guo ('Pacified Southern State') under Sultan Suleyman/Du Wenxiu in the 1860s. Any chance Yaqub Beg can consolidate Kashgaria with no Qing to push back?
I'd imagine both are in for some major turbulence after their founders die.