@kimor It might be outcompeted even if the fees go down again actually (should Lightning Network work well enough to accomplish this, or should they decide that they have to raise the blocksize earlier anyhow), simply because of security design flaws, no longer sticking to Satoshis definition in the paper and censoring/effectively expelling a good deal of the previous community. These things don't go away so easily.
But my hope is that they can both live on, doing their own thing. The risk is that a lot more money will otherwise be lost in the process, as has already happened previous to the fork even. It's never good to see people get hurt, even if changes are inevitable and necessary.