That's the idea. Changing the nature of the Julio-Claudian Dynasty dynamics would be the most desired, which would involve a series of "princes" brought up and exposed to imperial power by the Emperor, and then succeeded by those princes who repeat the process. Augustus's greatest success was a peaceful transition of power, but his greatest disaster was the death of nearly every single man he put forward as a successor with the exception of Tiberius. With Tiberius many of the favored successors also died off, leaving Caligula. Caligula's death left Claudius, who had the benefit of being one of the only ones left and the same thing happened with Nero. In short, it was the least of the Julio-Claudians who survived, and the manipulative nature of the Julio-Claudian women did not help much. If you could make this stable, and more importantly keep the idea of the Emperor being a civil official who just also happens to control the military with no more civil power a magister. Their civil influence would instead come from their
autoritas when it comes to internal politics. And that autoritas would be cemented for centuries as the descendents from Julius Caesar and Caesar Augustus.
It would not last forever, but if it can last a couple centuries longer than it did in OTL, then you have the playground you need to do whatever theoretical experimentation you want for industrialism. I might even argue that industrialism is likely in this case, at least to the level of the Song a good thousand years before the Song reached it.
The Flavians and Antonines are more practical. The Flavians were what the Julians could have been, but they died out after two generations. The Antonines had a far more open association with the military, since their successors were chosen because they were the leading generals at the time, but this practice served the Romans well while it lasted. The Severan's are the latest possible way to prevent this, but the inflation was already starting and it was clear that the state was a military regime and its funds existed to support that military. Perhaps the only way to reverse this trend would be to have
Geta succeed and have Caracella killed off.
At least, that's my take on this.