I went off-book in June 2019 with the ESP. 29 years tenure. Long time lurker, first-time poster.
I think that the high 2019 VSP numbers - coupled with the additional unexpected ESP numbers (2k+ IT employees who did not want to rebadge to Infosys) - ended up costing Verizon a lot more than they anticipated; both in monetary outlay and brain drain impacts. They also experienced increased costs for contractor labor afterward due to this; much more than what was planned for. Overall, it was a poorly planned transition that was badly executed and because of that it ended up "costing" versus "saving" the company money. Frankly, I am surprised that no one 'took the hit' for it in the C-Suite at Verizon.
Based on all of that - I would be highly surprised if another VSP/ESP type offer is made again - while Hans is the CEO - in the next decade. They will most likely go to the tried and true: RIF ~10% every quarter until the expense metric is met.
I was very fortunate that I ended up finding a new gig right away - even with slightly better pay. Although I am a contractor for now (I am considering joining them as an employee) the environment is so much more relaxed and the people I work with all treat each other with a significantly higher level of respect, regardless of title/role. Their response to COVID was indicative of how they value their employees/contractors with their actions prioritizing our safety over our production.
I agree with some of the other posters - don't wait for the big payout; it's most likely not going to come. VSP/ESP was a white whale that comes only once in a career. Instead, prepare now and spend time bettering your skillset with the myriad of company-provided training so that when you do get the tap on the shoulder - your response won't be "Oh no!" instead, it will be "Whew...finally!"