It's a bit of an if/then maybe answer.
Would this order be filled? In order to get a BTO execution, you need one or more counter parties willing to transact at your price. If it comes from STC parties, OI does not increase. If it comes from STO parties, OI will increase. So your 100,000 BTO position may or may not increase OI by 100,000. The only way that OI will increase by 100,000 is if all counter party selling is STO.
The current OI doesn't have a direct effect on your order other than providing more liquidity, making it more likely that a current short position can be enticed to STC to you.
Another way that you might get filled is if there is a seller of the same series put. If the premiums are attractive enough to allow a risk free arbitrage (ignoring Pin Risk), the market maker or floor trader will execute a Conversion to accommodate both transactions. The MM buys the other guy's puts, sells the calls to you and buys 100 shares per contract, laying off all of the risk to the two option counter parties.
Since this is a large order, as you pay up for the options, it's going to raise the IV and premium unless all of your BTO volume comes from current OI and it was looking to sell at current price. That's a long shot under normal circumstances and can't be the case here since your transaction size is greater than the Open Interest.
If your call's IV rises, the same series put's IV will rise. The IV of other strikes might be affected, depending on news, if any. If the MM senses something and wants to hedge more of his risk, B/A spreads will widen and the IV and premium of other strikes may increase somewhat. If this is just a one off order, maybe not much, if any IV increase elsewhere.
The only other limiting factor would be Position Limits. For the most part, that would not affect you since there aren't many underlyings where the Position Limit is under 100,000 contracts.