The closer to expiration the higher the IV collapse yes. Keep in mind that options prices are made up of mostly three components:
1. closeness to money. If the option is ITM, then that has a large component of the options price and also the movement with price is higher. If the option is OTM, then there's no money component.
2. time value. The further out the expiration, the bigger the time value. It's relatively simple to understand as the longer there is to expiration the more the stock can move in theory or has more time to get to the target price.
3. implied volatility. It basically means what kind of movement in the stock is expected. As an ER usually means a strong move based on the results, then the implied volatility goes up before earnings. After the earnings are announced and the stock makes its move (in after-hours and pre-market trade) there is no longer a huge move in planning and therefore the IV will drop significantly. If there is strong momentum still in the morning for the stock to keep moving, then there's a chance the IV is still highish in the first half-hour to an hour, but only if there is strong movement and it will not be as high as the day before.
So using this information you can piece together how the options prices will change with the ER. All options have an IV component and that will always spike pre-earnings and collapse post-earnings. Its impact however depends on where the options are strike wise. Deep ITM options will have little impact from the IV collapse because they have a high money component. Far out options (i.e. LEAPS etc) have small impact because they have high time value component. The biggest impact is on the weekly options of reporting week and the effect starts to drop the further out you go with the expiration dates.
Now remember, IV spikes because there is an implied move of the stock. If you have 210 calls and the IV spikes pre-earnings, then you have a few choices:
1. sell the call the evening of earnings release when the IV is at its maximum and net the profit from price movement + IV increase.
2. hedge your position by selling higher strike calls to cover your lower strike calls. If you acquired the lower strike calls at a discount during one of the tips, then it's likely you can set up a delayed construct that is risk free or close to it.
3. gamble that the stock moves enough to bring your options ITM thereby offsetting the IV drop (i.e. the precise reason IV spikes). However don't be surprised if your option is just worth the same or even less than the day before even though TSLA jumps from say $190 -> $215. The difference comes from the IV drop.
My plan is to probably do #2 and #3. The November options I'll hedge and the December, March options I'll run naked through the ER with the plan of catching as much upside as I can get from a possible run that may very well start only in late november once people have digested the ER and Elon's tweeted a bit