These are my 3 cents which fit in your view:
Regarding the first catalyst for bitcoin turning bullish again: there is already a hard fork in the making: bitcoin private (https://bitcoinpvt.org) In fact it already pumped zcash classic, because you'll get BTPs if you hold bitcoin OR ZCL at the time of the fork. (see also https://coinmarketcap.com/currencies/zclassic/). The fork is timed in a couple of weeks. Unlike Bitcoin Gold (which is a joke) it could gain some serios traction (50 contributors, ZN-SNARKS, 2MB, segwit, yadah yadah)
From a TA perspective it looks like a HS was prevented - but i'm not a TA expert - which is also slightly bullish.
Sooner or later a ripple or raiblocks or tron is gonna implode just by it's own weight without having bitcoin doing anything significant.
Btw. thank you for promoting STEEM. A lot of people still thinking its a scam, which is sad. Despite the recent price action, the numbers (new users, posts, comments) are exploding.
RE: The Coming Altcoin Exodus