halving is only effective under two conditions:
1. the coin is actually being used, or in other words it has real usage so the new supply generation cut in half can disturb the balance between supply and demand and lead to a rise.
2. the coin is useless but hyped up and gets pumped for no reason.
BCH has neither one of these reasons. it is useless so there no demand. halving can even damage it as it reduces the profit of miners by a BIG amount (half) and they can leave. also it is not hyped up anymore so pump chances are dim.
No. 2 might be the best instance of it, you know business mindedness runs on Ver as well. Don't expect that much.
I also think no.2 might happen. We have seen this kind of strategy before and it is always used when there is something huge event about to happen. So even if BCH had not much of a use, developer, whales and other investors who wanted to rake a profit out of this halving will do whatever they can to hype the market.
like LTC x3 ?
Depends on the pocket of the pumper and the effectiveness of the hype. Who knows we might see x4 or even more.