I agree. But I would "guess" that if the price doesn't increase, than it would cause the small time miners to get out. I can't imagine they would continue running a single card rig for 1/2 the gain.
We will basically see DOGE inflation halving. That certainly adds to coin value.
Block Numbers Per-Block Reward First Block Expected Coins Produced (approx) Expected Total Circulation (approx)
1-100,000 0-1,000,000 (random) 8 December, 2013 [49] 50,000,000,000 50,000,000,000
100,001-200,000 0-500,000 (random) 14 February, 2014 (estimated)[50] 25,000,000,000 75,000,000,000
200,001-300,000 0-250,000 (random) 25 April, 2014 (estimated) 12,500,000,000 87,500,000,000
300,001-400,000 0-125,000 (random) 3 July, 2014 (estimated) 6,250,000,000 93,750,000,000
400,001-500,000 0-62,500 (random) 10 September, 2014 (estimated) 3,125,000,000 96,875,000,000
500,001-600,000 0-31,250 (random) 19 November, 2014 (estimated) 1,562,000,000 98,437,500,000
600,001+ 10,000 (fixed) 27 January, 2015 (estimated) 5,256,000,000 per year No limit
Regarding DOGE/day and it's profitability, we can see DOGE rising, network(diff) falling, or the combination of these two.
So rise is not certain, because network can deal with block halving, in a manner that makes both DOGE mining profitability and its price remain the same.
Furthermore DOGE price will depend on BTC continuing free-fall/recovering and on plethora of other rational and rational reasons.
The more you think about the "right" answer, the more it makes your head spin